Updated SDKs

app/sdks/web-javascript/docs/examples/database/update-document.md

@@ -0,0 +1,13 @@
+let sdk = new Appwrite();
+
+sdk
+    .setProject('5df5acd0d48c2') // Your project ID
+;
+
+let promise = sdk.database.updateDocument('[COLLECTION_ID]', '[DOCUMENT_ID]', {}, [], []);
+
+promise.then(function (response) {
+    console.log(response); // Success
+}, function (error) {
+    console.log(error); // Failure
+});