update examples

Author: HugeBrain16

README.md

@@ -47,6 +47,8 @@ cmd = cmdtools.Cmd('/send hello')
 asyncio.run(cmdtools.execute(cmd, send))
 ```
 
+see [more examples](https://cmdtools-py.readthedocs.io/en/latest/examples.html)
+
 ## Links
 
 PyPI project: https://pypi.org/project/cmdtools-py