added some keyboard shortcuts to README and lots of cleanup

layout/left-panel/dashboard/quick-settings.lua

@@ -2,14 +2,6 @@ local wibox = require('wibox')
 local mat_list_item = require('widget.material.list-item')
 
 return wibox.widget {
-    -- wibox.widget {
-    --   wibox.widget {
-    --     text = 'Quick settings',
-    --     font = 'Roboto medium 12',
-    --     widget = wibox.widget.textbox
-    --   },
-    --   widget = mat_list_item
-    -- },
     require('widget.volume.volume-slider'),
     require('widget.brightness.brightness-slider'),
     layout = wibox.layout.fixed.vertical

layout/top-bar.lua

@@ -45,7 +45,6 @@ local TopBar = function(s, offset)
     -- SYSTEM DETAILS
     -- ==============
     local volume_widget = require('widget.volume')
-    local battery_widget = require('widget.battery')
     local clock_widget = require('widget.clock')
     local mem_widget = require('widget.memory')
     local cpu_widget = require('widget.cpu')
@@ -54,8 +53,6 @@ local TopBar = function(s, offset)
     local system_details = wibox.widget {
             systray,
             separator,
-            --battery_widget,
-            --separator,
             wibox.widget{
                 wibox.widget{
                     text = 'mem',