Cleaned up markdown formatting

This addresses the following:

- Cleans up some minor typos
- Normalizes the json code blocks
- Removes unnecessary whitespace characters
- Wraps `kbd` tags around instructions containing a plain text `F5`

Note that for the `json` code block with comments – step 5 of the configure section, I changed the language to `js` so that the comments would render properly.

debugging python/README.md

@@ -19,7 +19,7 @@ This recipe shows how to debug a Python application using the VS Code extension
 
 2. Then click on the gear icon to configure a launch.json file, select **Launch** for the environment.
 
-3. YOu may get an option of the environments available, select **Python**.
+3. You may get an option of the environments available, select **Python**.
 
 4. The generated json will have a lot of the configurations. You can keep all of them or only the ones you want.
 
@@ -82,12 +82,13 @@ This recipe shows how to debug a Python application using the VS Code extension
                 "request": "launch",
                 "program": "${file}",
                 "console": "externalTerminal"
-        }]
+            }
+        ]
     }
     ```
 
 5. For basic Python debugging of files, you will only need the following configuration:
-    ```json
+    ```js
     {
         // Use IntelliSense to learn about possible attributes.
         // Hover to view descriptions of existing attributes.
@@ -107,7 +108,8 @@ This recipe shows how to debug a Python application using the VS Code extension
                 "request": "launch",
                 "program": "${file}",
                 "console": "externalTerminal"
-        }]
+            }
+        ]
     }
     ```
 
@@ -115,14 +117,14 @@ This recipe shows how to debug a Python application using the VS Code extension
 
 1. Open your Python file in VS Code.
 
-2. Go to the Debug view, select the **Start Debugging** then press F5 or click the green play button.
+2. Go to the Debug view, select the **Start Debugging** then press <kbd>F5</kbd> or click the green play button.
 
 3. VS Code should now show the rails server logs.
 
 4. Go ahead and set a breakpoint in any of the files by clicking on the space before the line number. A red dot should appear to show a breakpoint.
 
-5. Press F5 to start debugging.
+5. Press <kbd>F5</kbd> to start debugging.
 
 6. Your breakpoint should now be hit.
 
-7. To continue, press F5 again, till you reach the end.
+7. To continue, press <kbd>F5</kbd> again, till you reach the end.