fix title

Author: michellewzhang

docs/platforms/javascript/common/session-replay/configuration.mdx

@@ -163,12 +163,14 @@ replayIntegration({
 
 Our SDKs allow you to send custom breadcrumbs, which will appear in the Replay Details UI alongside existing breadcrumbs. To learn how to send custom breadcrumbs, [read the docs here](/platforms/javascript/enriching-events/breadcrumbs/#customize-breadcrumbs). Note that any custom breadcrumbs you send will be reflected in both the Issue Details breadcrumbs UI and the Replay Details breadcrumbs tab.       
 
-All custom breadcrumbs in the Replay Details will appear grey, and can be identified by the title "Custom" and the terminal logo.
+All custom breadcrumbs in the Replay Details will appear grey, and can be identified by the terminal logo.
 
 In Replay Details, the breadcrumb `message` will take precedence over the `data` property. If the `message` property is set, then the string will be displayed like this:
 
 ![Custom breadcrumb example with message](./img/message-custom-breadcrumb.png)
 
 If `message` is not set, then the breadcrumb will display the `data` property by default. For example:
 
-![Custom breadcrumb example with data](./img/data-custom-breadcrumb.png)
+![Custom breadcrumb example with data](./img/data-custom-breadcrumb.png)
+
+The title of the breadcrumb will be the breadcrumb `category` that you set. If no `category` is set, then we will use the breadcrumb `message`. If that doesn't exist, we'll use the `description`. The last fallback with be a default title of "Custom".