Fix the command to start the release in rest_basic_auth example

examples/rest_basic_auth/README.md

@@ -13,7 +13,7 @@ $ make
 To start the release in the foreground:
 
 ``` bash
-$ ./_rel/bin/hello_world_example console
+$ ./_rel/bin/rest_basic_auth_example console
 ```
 
 Then point your browser at [http://localhost:8080](http://localhost:8080).