Show how one can require the widget from a git submodule

README.md

@@ -19,8 +19,13 @@ repository).
 For **Awesome 4.x**, add the following to your `~/.config/awesome/rc.lua`:
 
 ``` lua
+-- If you just copied the file in ~/.config/awesome
 local capslock = require("capslock")
 
+-- If you cloned the repo as a submodule in
+-- ~/.config/awesome/external/capslock
+-- local capslock = require("external.capslock.capslock")
+
 -- more config here
 
     -- Add widgets to the wibox