rename mod1 folder, add folder READMEs

Author: wescpy

Diff for: README.md

@@ -63,15 +63,15 @@ The table below summarizes migration module resources currently available to dev
 Module | Topic | Codelab | START repo | FINISH repo
 --- | --- | --- | --- | ---
 0|Baseline app| _N/A_ (no migration; just review the code) | _N/A_ | Module 0 [code](/mod0-baseline) (2.x)
-1|Migrate to Flask| [link](http://g.co/codelabs/pae-migrate-flask) | Module 0 [code](/mod0-baseline) (2.x) | Module 1 [code](/mod1-framework) (2.x)
-2|Migrate to Cloud NDB| [link](http://g.co/codelabs/pae-migrate-cloudndb) | Module 1 [code](/mod1-framework) (2.x) | Module 2 [code](/mod2a-cloudndb) (2.x) & [code](/mod2b-cloudndb) (3.x)
+1|Migrate to Flask| [link](http://g.co/codelabs/pae-migrate-flask) | Module 0 [code](/mod0-baseline) (2.x) | Module 1 [code](/mod1-flask) (2.x)
+2|Migrate to Cloud NDB| [link](http://g.co/codelabs/pae-migrate-cloudndb) | Module 1 [code](/mod1-flask) (2.x) | Module 2 [code](/mod2a-cloudndb) (2.x) & [code](/mod2b-cloudndb) (3.x)
 3|Migrate to Cloud Datastore| [link](http://g.co/codelabs/pae-migrate-datastore) | Module 2 [code](/mod2a-cloudndb) (2.x) & [code](/mod2b-cloudndb) (3.x) | Module 3 [code](/mod3a-datastore) (2.x) & [code](/mod3b-datastore) (3.x)
 4|Migrate to Cloud Run with Docker| [link](http://g.co/codelabs/pae-migrate-rundocker) | Module 2 [code](/mod2a-cloudndb) (2.x) & Module 3 [code](/mod3b-datastore) (3.x) | Module 4 [code](/mod4a-rundocker) (2.x) & [code](/mod4b-rundocker) (3.x)
 5|Migrate to Cloud Run with Buildpacks| [link](http://g.co/codelabs/pae-migrate-runbldpks) | Module 2 [code](/mod2b-cloudndb) (3.x) | Module 5 [code](/mod5-runbldpks) (3.x)
 6|Migrate to Cloud Firestore| [link](http://g.co/codelabs/pae-migrate-firestore) | Module 3 [code]() (3.x) | Module 6 [code](/mod6-firestore) (3.x)
 7|Add App Engine push tasks| [link](http://g.co/codelabs/pae-migrate-gaetasks) | Module 1 [code]() (2.x) | Module 7 [code](/mod7-gaetasks) (2.x)
 8|Migrate to Cloud Tasks| [link](http://g.co/codelabs/pae-migrate-cloudtasks) | Module 7 [code](/mod7-gaetasks) (2.x) | Module 8 [code](/mod8-cloudtasks) (2.x)
-9|Migrate to Python 3 (Cloud Datastore & Cloud Tasks v2)| [link](http://g.co/codelabs/pae-migrate-py3dstasks) | Module 8 [code](/mod8-cloudtasks) (2.x) | Module 9 [code](/mod9-py3clouddstasks) (3.x)
+9|Migrate to Python 3 (Cloud Datastore & Cloud Tasks v2)| [link](http://g.co/codelabs/pae-migrate-py3dstasks) | Module 8 [code](/mod8-cloudtasks) (2.x) | Module 9 [code](/mod9-py3dstasks) (3.x)
 
 
 ### Table of contents
@@ -84,15 +84,15 @@ If there is a logical codelab to do immediately after completing one, they will
         - `webapp2` does not do routing thus unsupported by App Engine (even though a [3.x port exists](https://github.com/fili/webapp2-gae-python37))
     - Python 2 only
         - START:  [Module 0 code - Baseline](/mod0-baseline) (2.x)
-        - FINISH: [Module 1 code - Framework](/mod1-framework) (2.x)
+        - FINISH: [Module 1 code - Framework](/mod1-flask) (2.x)
     - NEXT: Module 2 codelab - migrate to Cloud NDB
 
 
 - [Module 2 codelab](http://g.co/codelabs/pae-migrate-cloudndb): **Migrate from App Engine `ndb` to [Cloud NDB](https://googleapis.dev/python/python-ndb/latest)**
     - **Required** migration
         - Migration to Cloud NDB which is supported by Python 3 and the next-gen platform.
     - Python 2
-        - START:  [Module 1 code - Framework](/mod1-framework) (2.x)
+        - START:  [Module 1 code - Framework](/mod1-flask) (2.x)
         - FINISH: [Module 2 code - Cloud NDB](/mod2a-cloudndb) (2.x)
     - Codelab bonus port to Python 3.x
         - FINISH: [Module 2 code - Cloud NDB](/mod2b-cloudndb) (3.x)
@@ -106,7 +106,7 @@ If there is a logical codelab to do immediately after completing one, they will
 - [Module 7 codelab](http://g.co/codelabs/pae-migrate-gaetasks): **Add App Engine (push) Task Queues to App Engine `ndb` Flask app**
     - **Not a migration**: add GAE Task Queues to prepare for migration to Cloud Tasks
     - Python 2
-        - START:  [Module 1 code - Framework](/mod1-framework) (2.x)
+        - START:  [Module 1 code - Framework](/mod1-flask) (2.x)
         - FINISH: [Module 7 code - GAE Task Queues](/mod7-gaetasks) (2.x)
     - NEXT: Module 8 codelab - migrate App Engine push tasks to Cloud Tasks
 
@@ -127,7 +127,7 @@ If there is a logical codelab to do immediately after completing one, they will
     - Python 2
         - START:  [Module 8 code - Cloud Tasks](/mod8-cloudtasks) (2.x)
     - Python 3
-        - FINISH: [Module 9 code - Cloud Datastore & Tasks](/mod9-py3clouddstasks) (3.x)
+        - FINISH: [Module 9 code - Cloud Datastore & Tasks](/mod9-py3dstasks) (3.x)
     - RECOMMENDED:
         - Module 5 codelab - migrate to Cloud Run container with Cloud Buildpacks
         - Module 4 codelab - migrate to Cloud Run container with Docker

Diff for: mod0-baseline/README.md

@@ -0,0 +1,3 @@
+# Module 0 - Baseline migration sample app (Python 2, `webapp2`, `ndb`)
+
+This repo folder is the baseline app for the App Engine migration module codelab tutorials. It is a Python 2 App Engine app that uses the `webapp2` micro web framework implementing an "MVP" guestbook app. It stores website visits as Datastore entities using the `ndb` library. The first tutorial in this migration series is the [Module 1 codelab](http://g.co/codelabs/pae-migrate-flask), so begin there.

Diff for: mod1-framework/.gcloudignore renamed to mod1-flask/.gcloudignore

@@ -0,0 +1,3 @@
+# Module 1 - Migrate from `webapp2` to Flask
+
+This repo folder is the corresponding code to the [Module 1 codelab](http://g.co/codelabs/pae-migrate-flask). The tutorial STARTs with the Python 2 code in the [Module 0 repo folder](/mod0-baseline) and leads developers through migrating away from App Engine's `webapp2` web framework to Flask, culminating in the code in this folder.

Diff for: mod1-flask/README.md

@@ -0,0 +1,3 @@
+# Module 2 - Migrate from App Engine `ndb` to Google Cloud NDB
+
+This repo folder is the corresponding Python 2 code to the [Module 2 codelab](http://g.co/codelabs/pae-migrate-cloudndb). The tutorial STARTs with the Python 2 code in the [Module 1 repo folder](/mod1-flask) and leads developers through migrating away from App Engine's `ndb` to Cloud NDB to access Datastore, culminating in the code in this folder.

Diff for: mod1-framework/app.yaml renamed to mod1-flask/app.yaml

@@ -0,0 +1,3 @@
+# Module 2 - Migrate from App Engine `ndb` to Google Cloud NDB
+
+This repo folder is the corresponding Python 3 code to the [Module 2 codelab](http://g.co/codelabs/pae-migrate-cloudndb). The tutorial STARTs with the Python 2 code in the [Module 1 repo folder](/mod1-flask) and leads developers through migrating away from App Engine's `ndb` to Cloud NDB to access Datastore and from Python 2 to 3, culminating in the code in this folder.

Diff for: mod1-framework/appengine_config.py renamed to mod1-flask/appengine_config.py

@@ -0,0 +1,3 @@
+# Module 3 - Migrate from Google Cloud NDB to Cloud Datastore
+
+This repo folder is the corresponding Python 2 code to the [Module 3 codelab](http://g.co/codelabs/pae-migrate-datastore). The tutorial STARTs with the Python 2 code in the [Module 2 repo folder](/mod2a-cloudndb) and leads developers through migrating away from Cloud NDB to Cloud Datastore to access Datastore, culminating in the code in this folder.

Diff for: mod1-framework/main.py renamed to mod1-flask/main.py

@@ -0,0 +1,3 @@
+# Module 3 - Migrate from Google Cloud NDB to Cloud Datastore
+
+This repo folder is the corresponding Python 3 code to the [Module 3 codelab](http://g.co/codelabs/pae-migrate-datastore). The tutorial STARTs with the Python 3 code in the [Module 2 repo folder](/mod2b-cloudndb) and leads developers through migrating away from Cloud NDB to Cloud Datastore to access Datastore, culminating in the code in this folder.

Diff for: mod1-framework/requirements.txt renamed to mod1-flask/requirements.txt

@@ -0,0 +1,3 @@
+# Module 4 - Migrate from Google App Engine to Cloud Run with Docker
+
+This repo folder is the corresponding Python 2 code to the [Module 4 codelab](http://g.co/codelabs/pae-migrate-rundocker). The tutorial STARTs with the Python 2 code in the [Module 2 repo folder](/mod2a-cloudndb) and leads developers through migrating away from App Engine to Cloud Run using Docker, culminating in the code in this folder.

Diff for: mod1-framework/templates/index.html renamed to mod1-flask/templates/index.html

@@ -0,0 +1,3 @@
+# Module 4 - Migrate from Google App Engine to Cloud Run with Docker
+
+This repo folder is the corresponding Python 3 code to the [Module 4 codelab](http://g.co/codelabs/pae-migrate-rundocker). The tutorial STARTs with the Python 3 code in the [Module 3 repo folder](/mod3b-datastore) and leads developers through migrating away from App Engine to Cloud Run using Docker, culminating in the code in this folder.

Diff for: mod2a-cloudndb/README.md

@@ -0,0 +1,3 @@
+# Module 5 - Migrate from Google App Engine to Cloud Run with Cloud Buildpacks
+
+This repo folder is the corresponding Python 3 code to the [Module 5 codelab](http://g.co/codelabs/pae-migrate-runbldpks). The tutorial STARTs with the Python 3 code in the [Module 2 repo folder](/mod2b-cloudndb) and leads developers through migrating away from App Engine to Cloud Run using Cloud Buildpacks, culminating in the code in this folder.

Diff for: mod2b-cloudndb/README.md

@@ -0,0 +1,3 @@
+# Module 6 - Migrate from Google Cloud Datastore to Cloud Firestore
+
+This repo folder is the corresponding Python 3 code to the [Module 6 codelab](http://g.co/codelabs/pae-migrate-firestore). The tutorial STARTs with the Python 3 code in the [Module 3 repo folder](/mod3b-datastore) and leads developers through migrating away from Cloud Datastore to Cloud Firestore, culminating in the code in this folder.

Diff for: mod3a-datastore/README.md

@@ -0,0 +1,3 @@
+# Module 7 - Add usage of App Engine `taskqueue` to Flask `ndb` sample app
+
+This repo folder is the corresponding Python 2 code to the [Module 7 codelab](http://g.co/codelabs/pae-migrate-gaetasks). The tutorial STARTs with the Python 2 code in the [Module 1 repo folder](/mod1-flask) and leads developers through adding usage of App Engine's `taskqueue`, culminating in the code in this folder.

Diff for: mod3b-datastore/README.md

@@ -0,0 +1,3 @@
+# Module 8 - Migrate from App Engine `taskqueue` to Google Cloud Tasks
+
+This repo folder is the corresponding Python 2 code to the [Module 8 codelab](http://g.co/codelabs/pae-migrate-cloudtasks). The tutorial STARTs with the Python 2 code in the [Module 7 repo folder](/mod7-gaetasks) and leads developers through migrating from `taskqueue` to Cloud Tasks, culminating in the code in this folder.

Diff for: mod4a-rundocker/README.md

@@ -0,0 +1,3 @@
+# Module 9 - Migrate from Python 2 to 3 and Cloud NDB to Cloud Datastore
+
+This repo folder is the corresponding Python 3 code to the [Module 9 codelab](http://g.co/codelabs/pae-migrate-py3dstasks). The tutorial STARTs with the Python 2 code in the [Module 8 repo folder](/mod7-cloudtasks) and leads developers through migrating from Python 2 to 3, Cloud NDB to Cloud Datastore (plus any changes from Cloud Tasks v1 to v2), culminating in the code in this folder.