fixup! annotations: delete annotations

Author: mschristensen

src/pages/docs/messages/annotations.mdx

@@ -166,6 +166,14 @@ You can also optionally specify a `name` for the annotation which is used by cer
 
 <Code>
 ```javascript
+// Create an Ably Realtime client specifying the clientId that will
+// be associated with annotations published by this client
+const realtime = new Ably.Realtime({ key: '{{API_KEY}}', clientId: 'my-client-id' });
+
+// Create a channel in a namespace called `annotations`
+// which has message annotations enabled 
+const channel = realtime.channels.get('annotations:example');
+
 // Delete a 'delivered' annotation
 await channel.annotations.delete(message.serial, {
   type: 'receipts:flag.v1',
@@ -174,6 +182,14 @@ await channel.annotations.delete(message.serial, {
 ```
 
 ```nodejs
+// Create an Ably Realtime client specifying the clientId that will
+// be associated with annotations published by this client
+const realtime = new Ably.Realtime({ key: '{{API_KEY}}', clientId: 'my-client-id' });
+
+// Create a channel in a namespace called `annotations`
+// which has message annotations enabled 
+const channel = realtime.channels.get('annotations:example');
+
 // Delete a 'delivered' annotation
 await channel.annotations.delete(message.serial, {
   type: 'receipts:flag.v1',