[update] Readme.

README.md

@@ -32,6 +32,15 @@ See [INSTALL.md](./docs/INSTALL.md) for installing swhkd.
 ## Running:
 `swhks`
 `pkexec swhkd`
+To refresh the config at runtime, make a script like so:
+
+```bash
+#!/bin/sh
+pkexec killall swhkd
+pkexec swhkd
+```
+
+Then call it using `setsid -f sh <path_to_refres_script>`. A better implementation using signals will be developed later.
 
 ## Support server: