Updating again to configure VS Code extension

Author: v-cap

.devcontainer/devcontainer.json

@@ -6,4 +6,17 @@
 
     "remoteUser": "codespace",
     "overrideCommand": false
-}
+    ,
+    // Add the IDs of extensions you want installed when the container is created.
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "GitHub.copilot"
+            ]
+        },
+        "codespaces": {
+            "openFiles": [
+                "codespace.md"
+            ]
+        }
+    }}