Updated VS Code Instructions (markdown)

VS-Code-Instructions.md

@@ -30,7 +30,13 @@ To achieve different weights add one of the following (verified on Mac):
     "editor.fontWeight": "600" // Bold
 ```
 
-To use Retina weight, change Font name to `FiraCode-Retina` (exactly that, no spaces):
+To use Retina weight, change Font name to `FiraCode-Retina` (if macOS, exactly that, no spaces):
 ```json
     "editor.fontFamily": "FiraCode-Retina",
 ```
+
+or 'Fira Code Retina' if Windows:
+
+```json
+    "editor.fontFamily": "Fira Code Retina",
+```