Update quickstart.md

Author: MichaelCurrin

docs/quickstart.md

@@ -1,5 +1,7 @@
 # Quickstart
 
+How to install and run the extension in VS Code.
+
 
 ## Install
 
@@ -14,13 +16,14 @@ Go to the Marketplace link below then click the _Install_ button.
 
 ## Run
 
-Then use the extension like this:
+Use the extension like this:
 
-1. Open VS Code where you have a Git repo.
-1. Edit one or more files.
-1. Optionally stage one files.
+1. Open VS Code.
+1. Open a project which is a Git repo.
+1. Edit one or more files and save them.
+1. Optionally stage one of the files.
     - This is useful if want smaller changes in your commit and your commit message.
-    - Staging is necessary if you do a _move_ or _rename_, so that Git sees the old and new path as the _same_ file.
+    - Staging is necessary if you do a _move_ or _rename_, so that Git sees the old and new path as the _same_ file. But otherwise, you don't have to stage.
 1. In VS Code's built-in Git pane, click the extension's icon.
 1. The extension will create a descriptive commit message for you in the commit message box.
 1. Optionally edit your message.