Add custom event code snippets for JS and cURL

docusaurus/video/docusaurus/docs/api/webhooks/overview.mdx

@@ -18,7 +18,12 @@ Client-side you can observe calls and receive events by passing the `watch:true`
 
 ```js
 // send a custom event to all users watching the call
-TODO
+call.sendCustomEvent({
+  custom: {
+    'render-animation': 'balloons',
+  },
+  user_id: 'john',
+});
 ```
 
 </TabItem>
@@ -33,13 +38,19 @@ call.send_call_event(user_id=user.id, custom={"render-animation": "balloons"})
 <TabItem value="curl" label="cURL">
 
 ```bash
-TODO
+curl -X POST https://video.stream-io-api.com/api/v2/video/call/${CALL_TYPE}/${CALL_ID}/event?api_key=${API_KEY} \
+  -H "Authorization: ${TOKEN}" \
+  -H "stream-auth-type: jwt" \
+  -H 'Content-Type: application/json' \
+  -d '{
+    "custom": {"render-animation": "balloons"},
+    "user_id": "john"
+  }'
 ```
 
 </TabItem>
 </Tabs>
 
-
 You can configure your Stream app to send events to your HTTP/webhook and/or to your AWS SQS queue. Webhooks are usually
 the simplest way to receive events from your app and to perform additional action based on what happens to your application.
 
@@ -58,7 +69,7 @@ Your webhook handler can use the `type` field to handle events based correctly b
 All webhook requests contain these headers:
 
 | Name              | Description                                                                                                          |
-|-------------------|----------------------------------------------------------------------------------------------------------------------|
+| ----------------- | -------------------------------------------------------------------------------------------------------------------- |
 | X-WEBHOOK-ID      | Unique ID of the webhook call. This value is consistent between retries and could be used to deduplicate retry calls |
 | X-WEBHOOK-ATTEMPT | Number of webhook request attempt starting from 1                                                                    |
 | X-API-KEY         | Your application’s API key. Should be used to validate request signature                                             |
@@ -83,4 +94,3 @@ In case of the request failure Stream Chat attempts to retry a request. The amou
 - Request timeout: 3 attempts
 
 The timeout of one request is 6 seconds, and the request with all retries cannot exceed the duration of 15 seconds.
-