Added VSCode settings to README.

Added .vscode to .gitignore.

.gitignore

@@ -4,3 +4,6 @@ eslint_report.html
 # Demo sources
 demos/src_highres
 demos/src_lowres
+
+# Local dev environment settings
+.vscode

README.md

@@ -127,6 +127,38 @@ To setup prospector, you need to run:
     + `prospector -s veryhigh -w mypy --max-line-length 88 .`
     + `black .`
 
+For VSCode users, you can run those automatically in your IDE. Here is what your .vscode/settings.json file should include : 
+    ```json
+    "files.exclude": {
+        "**/.git": true,
+        "**/.svn": true,
+        "**/.hg": true,
+        "**/CVS": true,
+        "**/.DS_Store": true,
+        "**/Thumbs.db": true,
+        "**/*.pyc": true,
+        "**/__pycache__": true
+    },
+    // Replace by your own venv python path
+    "python.defaultInterpreterPath": "~\\.virtualenvs\\melpomene-ajDJjHHp\\Scripts\\python.exe",
+    "python.formatting.provider": "black",
+    "[python]": {
+        "editor.formatOnType": true,
+    },
+    "python.linting.enabled": true,
+    "python.linting.prospectorEnabled": true,
+    "python.linting.prospectorArgs": [
+        "-s",
+        "veryhigh",
+        "-w",
+        "mypy",
+        "--max-line-length",
+        "88"
+    ],
+    "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).