Update comments

.devcontainer/devcontainer.json

@@ -1,12 +1,25 @@
 {
     "name": "PHP",
-    "dockerFile": "Dockerfile",
-    "extensions": [
-        "felixfbecker.php-debug",
-        "felixfbecker.php-intellisense"
-    ],
+	"dockerFile": "Dockerfile",
+
+    // Comment out the next line to run as root instead. Linux users, update
+    // Dockerfile with your user's UID/GID if not 1000.
+	"runArgs": ["-u", "vscode"],
+	
+	// Use 'settings' to set *default* container specific settings.json values on container create. 
+	// You can edit these settings after create using File > Preferences > Settings > Remote.
     "settings": {
         "terminal.integrated.shell.linux": "/bin/bash"
-    },
-    "runArgs": [ "-u", "vscode"]
+	},
+
+	// Uncomment the next line if you want to publish any ports.
+	// "appPort": [],
+
+	// Uncomment the next line to run commands after the container is created.
+	// "postCreateCommand": "php -v",
+
+	"extensions": [
+        "felixfbecker.php-debug",
+        "felixfbecker.php-intellisense"
+    ]	
 }