Add customizations for VS Code extensions and open files in devcontai…

…ner.json

.devcontainer/devcontainer.json

@@ -3,7 +3,19 @@
   "name": "Codespace for Skills!",
   // Use the base codespace image
   "image": "mcr.microsoft.com/vscode/devcontainers/universal:latest",
-
   "remoteUser": "codespace",
-  "overrideCommand": false
+  "overrideCommand": false,
+  // Add the IDs of extensions you want installed when the container is created.
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "GitHub.copilot",
+      ]
+    },
+    "codespaces": {
+      "openFiles": [
+        "codespace.md"
+      ]
+    }
+  }
 }