Updated stale link
-Documentation for the Temporal command line interface is located at our [main site](https://docs.temporal.io/docs/learn-cli/).
+Documentation for the Temporal command line interface is located at our [main site](https://docs.temporal.io/docs/tctl/).
## Quick Start
Run `make` from the project root. You should see an executable file called `tctl`. Try a few example commands to
