Add example config file to man page

Adds an example of config file contents to more clearly explain the
format to users unfamiliar with it. It's the same example as already
exists in the man page.

Author: sirlark

swayidle.1.scd

@@ -98,6 +98,16 @@ It will also lock your screen before your computer goes to sleep.
 To make sure swayidle waits for swaylock to lock the screen before it releases the
 inhibition lock, the *-w* options is used in swayidle, and *-f* in swaylock.
 
+# EXAMPLE CONFIG
+
+The same example as above, when specified in a config file suach as $XDG_CONFIG_HOME/swayidle/config
+
+```
+timeout 300 'swaylock -f -c 000000'
+timeout 600 'swaymsg "output * power off"' resume 'swaymsg "output * power on"'
+before-sleep 'swaylock -f -c 000000'
+```
+
 # AUTHORS
 
 Maintained by Drew DeVault <[email protected]>, who is assisted by other open