docs: fix link in CustomTemplatesService

Author: szuperaz

projects/stream-chat-angular/src/lib/custom-templates.service.ts

@@ -44,7 +44,7 @@ import {
  *
  * For code examples to the different customizations see our [customizations example application](https://github.com/GetStream/stream-chat-angular/tree/master/projects/customizations-example), specifically the [AppComponent](https://github.com/GetStream/stream-chat-angular/tree/master/projects/customizations-example/src/app) (see [README](https://github.com/GetStream/stream-chat-angular/blob/master/README.md#customization-examples) for instructions on how to start the application).
  *
- * You can find the type definitions of the context that is provided for each template [on GitHub](https://github.com/GetStream/stream-chat-angular/blob/master/projects/stream-chat-angu)
+ * You can find the type definitions of the context that is provided for each template [on GitHub](https://github.com/GetStream/stream-chat-angular/blob/master/projects/stream-chat-angular/src/lib/types.ts)
  */
 @Injectable({
   providedIn: 'root',