Fix Get Function Cluster in Master Docs
### Motivation
About , fix path in master docs.
### Modifications
Change `curl -s http://localhost:8080/admin/v2/functions/cluster` to `curl -s http://localhost:8080/admin/v2/worker/cluster`
@@ -96,7 +96,7 @@ telnet localhost 6650
2. Check pulsar function cluster
```bash
-curl -s http://localhost:8080/admin/v2/functions/cluster
+curl -s http://localhost:8080/admin/v2/worker/cluster
```
Example output:
