usage instructions

README.md

@@ -1,3 +1,38 @@
 # popupswitcher
 
 Popup tasklist switcher for awesomewm
+
+## Usage
+`require` the library:
+
+```
+local switcherpopup = require("switcherpopup")
+```
+
+Add one for each screen:
+
+```
+  local tasklist = switcherpopup.new(s)
+```
+
+Add some buttons to show and hide it:
+
+```
+  switcher_button:buttons(gears.table.join(
+    switcher_button:buttons(),
+    awful.button({}, 1, nil, function()
+      tasklist:toggle()
+    end)
+  ))
+```
+
+## Configuration
+
+```
+switcherpopup.iconSize = 128,
+switcherpopup.systraySize = 64,
+switcherpopup.buttonSize = 96,
+switcherpopup.spacing = 5,
+switcherpopup.defaultLayout = awful.layout.suit.max,
+switcherpopup.iconPath = gears.filesystem.get_configuration_dir() .. "/switcherpopup/"
+```