docs: tweak profiling.md
IOx includes an embedded `pprof` exporter compatible with the [go pprof](https://golang.org/pkg/net/http/pprof/) tool.
-To use it, aim your favorite tool at your IOx host at the HTTP `debug/pprof/profile` endpoint.
+To use it, aim your favorite tool at your IOx host at the HTTP `/debug/pprof/profile` endpoint.
# Use the Go `pprof` tool:
Example
```shell
-; go tool pprof 'http://localhost:8080/debug/pprof/profile?seconds=5'
+go tool pprof 'http://localhost:8080/debug/pprof/profile?seconds=5'
```
And you get output like:
