Fixed vscode settings markdown.

README.md

@@ -128,7 +128,8 @@ To setup prospector, you need to run:
     + `black .`
 
 For VSCode users, you can run those automatically in your IDE. Here is what your .vscode/settings.json file should include :
-    ```json
+
+```json
     "files.exclude": {
         "**/.git": true,
         "**/.svn": true,
@@ -157,8 +158,8 @@ For VSCode users, you can run those automatically in your IDE. Here is what your
     ],
     "editor.rulers": [
         88
-    ]
-    ```
+    ],
+```
 # Credits
 
 Most examples and the documentation of Melpomene uses illustrations from David "Deevad" Revoy's "Pepper & Carrot" webcomic, which is published under CC-BY 4.0. Full licence [here](https://www.peppercarrot.com/en/license/index.html).