update

Author: zackliu

articles/azure-web-pubsub/reference-json-reliable-webpubsub-subprotocol.md

@@ -23,7 +23,7 @@ For example, in JS, a Reliable PubSub WebSocket client can be created using:
 var pubsub = new WebSocket('wss://test.webpubsub.azure.com/client/hubs/hub1', 'json.reliable.webpubsub.azure.v1');
 ```
 
-When using `json.reliable.webpubsub.azure.v1` subprotocol, the client must follow the [How to create reliable clients](./howto-develop-reliable-clients) to implement reconnection, publisher and subscriber.
+When using `json.reliable.webpubsub.azure.v1` subprotocol, the client must follow the [How to create reliable clients](./howto-develop-reliable-clients.md) to implement reconnection, publisher and subscriber.
 
 [!INCLUDE [reference-permission](includes/reference-permission.md)]
 

articles/azure-web-pubsub/reference-protobuf-reliable-webpubsub-subprotocol.md

@@ -25,7 +25,7 @@ For example, in JavaScript, you can create a Reliable PubSub WebSocket client wi
 var pubsub = new WebSocket('wss://test.webpubsub.azure.com/client/hubs/hub1', 'protobuf.reliable.webpubsub.azure.v1');
 ```
 
-When using `json.reliable.webpubsub.azure.v1` subprotocol, the client must follow the [How to create reliable clients](./howto-develop-reliable-clients) to implement reconnection, publisher and subscriber.
+When using `json.reliable.webpubsub.azure.v1` subprotocol, the client must follow the [How to create reliable clients](./howto-develop-reliable-clients.md) to implement reconnection, publisher and subscriber.
 
 > [!NOTE]
 > Currently, the Web PubSub service supports only [proto3](https://developers.google.com/protocol-buffers/docs/proto3).