docs(CONTRIBUTING.md, README.md): Add instructions regarding commit script

Add strong recommendation to use the commit script for creating commit messages

#19

Author: Jennifer Luker

Diff for: CONTRIBUTING.md

@@ -53,7 +53,8 @@ Before you submit your Pull Request (PR) consider the following guidelines:
   is necessary because release notes are automatically generated from these messages.
 
      ```shell
-     git commit -a
+     git add .
+     npm run commit
      ```
   Note: the optional commit `-a` command line option will automatically "add" and "rm" edited files.
 

Diff for: README.md

@@ -32,3 +32,11 @@ The build and test structure is fairly primitive at the moment. There are variou
 - build: build artifacts will be stored in the `dist/` directory
 - build-prod: builds for production using the `--prod` flag
 - commit: runs git commit wizard for passing rxjs-github-bot message validator
+
+## Committing
+It is strongly recommended that when creating a commit, you follow this procedure to start the commit wizard. It will aid you on creating valid commit messages.
+
+     ```shell
+     git add .
+     npm run commit
+     ```