Update code examples and screenshot. Run things with pip3.

Author: CleanCut

.travis.yml

@@ -28,9 +28,9 @@ matrix:
               #- pip_pypy3 install virtualenv
               #- sleep 1
           install:
-            - "pip install --user $USER ."
-            - "pip install --user $USER virtualenv"
-            - "pip install --user $USER coveralls"
+            - "pip3 install --user $USER ."
+            - "pip3 install --user $USER virtualenv"
+            - "pip3 install --user $USER coveralls"
         - os: osx
           osx_image: xcode9.4
           language: generic
@@ -48,9 +48,9 @@ matrix:
               #- pip_pypy3 install virtualenv
               #- sleep 1
           install:
-            - "pip install --user $USER ."
-            - "pip install --user $USER virtualenv"
-            - "pip install --user $USER coveralls"
+            - "pip3 install --user $USER ."
+            - "pip3 install --user $USER virtualenv"
+            - "pip3 install --user $USER coveralls"
         - os: linux
           python: 3.5
           language: python

README.md

@@ -396,26 +396,29 @@ To run the unittests, we would change to the parent directory of the project
 
     $ green proj
     ....
-    Ran 4 tests in 0.000s
-
+    
+    Ran 4 tests in 0.125s using 8 processes
+    
     OK (passes=4)
 
 Okay, so that's the classic short-form output for unit tests.  Green really
 shines when you start getting more verbose:
 
 **In a real terminal, this output is syntax highlighted**
 
-    $ green -vv proj
-    proj.test.test_foo
+    $ green -vvv proj
+    Green 3.0.0, Coverage 4.5.2, Python 3.7.4
+    
+    test_foo
       TestAnswer
     .   answer() returns 42
     .   answer() returns an integer
       TestSchool
     .   test_age
     .   test_food
-
-    Ran 4 tests in 0.001s
-
+    
+    Ran 4 tests in 0.123s using 8 processes
+    
     OK (passes=4)
 
 Notes: