PublishApi.md in fastly-8.1.0

- old
+ new
@@ -17,10 +17,10 @@
 
 ```ruby
 publish(opts): String # Send messages to Fanout subscribers
 ```
 
-Send one or more messages to [Fanout](https://developer.fastly.com/learning/concepts/real-time-messaging/fanout) subscribers. Each message specifies a channel, and Fanout will deliver the message to all subscribers of its channel. > **IMPORTANT:** For compatibility with GRIP, this endpoint requires a trailing slash, and the API token may be provided in the `Authorization` header (instead of the `Fastly-Key` header) using the `Bearer` scheme. 
+Send one or more messages to [Fanout](https://www.fastly.com/documentation/learning/concepts/real-time-messaging/fanout) subscribers. Each message specifies a channel, and Fanout will deliver the message to all subscribers of its channel. > **IMPORTANT:** For compatibility with GRIP, this endpoint requires a trailing slash, and the API token may be provided in the `Authorization` header (instead of the `Fastly-Key` header) using the `Bearer` scheme. 
 
 ### Examples
 
 ```ruby
 api_instance = Fastly::PublishApi.new