chore: update sdk docs

docs/examples/0.12.x/console-web/examples/functions/list-runtimes.md

@@ -0,0 +1,14 @@
+const sdk = new Appwrite();
+
+sdk
+    .setEndpoint('https://[HOSTNAME_OR_IP]/v1') // Your API Endpoint
+    .setProject('5df5acd0d48c2') // Your project ID
+;
+
+let promise = sdk.functions.listRuntimes();
+
+promise.then(function (response) {
+    console.log(response); // Success
+}, function (error) {
+    console.log(error); // Failure
+});