README: standardize quotes

README

@@ -341,31 +341,31 @@ registering widgets you have to add them to a wibox (statusbar) in
 order to actually display them.
 
 Date widget
-  datewidget = widget({ type = 'textbox' })
-  vicious.register(datewidget, vicious.widgets.date, '%b %d, %R')
+  datewidget = widget({ type = "textbox" })
+  vicious.register(datewidget, vicious.widgets.date, "%b %d, %R")
 
   - updated every 2 seconds (the default interval), uses standard
     date sequences as the format string
 
 Memory widget
-  memwidget = widget({ type = 'textbox' })
+  memwidget = widget({ type = "textbox" })
   vicious.cache(vicious.widgets.mem)
-  vicious.register(memwidget, vicious.widgets.mem, '$1 ($2MB/$3MB)', 13)
+  vicious.register(memwidget, vicious.widgets.mem, "$1 ($2MB/$3MB)", 13)
 
   - updated every 13 seconds, appends "MB" to 2nd and 3rd returned
     values and enables caching of this widget type
 
 HDD temperature widget
-  hddtempwidget = widget({ type = 'textbox' })
-  vicious.register(hddtempwidget, vicious.widgets.hddtemp, '${/dev/sda}°C', 19)
+  hddtempwidget = widget({ type = "textbox" })
+  vicious.register(hddtempwidget, vicious.widgets.hddtemp, "${/dev/sda} °C", 19)
 
   - updated every 19 seconds, requests the temperature level of the
     {/dev/sda} key/disk and appends "°C" to the returned value, does
     not provide the port argument so default port is used
 
 Mbox widget
-  mboxwidget = widget({ type = 'textbox' })
-  vicious.register(mboxwidget, vicious.widgets.mbox, '$1', 5, '/home/user/mail/Inbox')
+  mboxwidget = widget({ type = "textbox" })
+  vicious.register(mboxwidget, vicious.widgets.mbox, "$1", 5, "/home/user/mail/Inbox")
 
   - updated every 5 seconds, provides full path to the mbox as an
     argument
@@ -375,11 +375,11 @@ Battery widget
   batwidget:set_width(8)
   batwidget:set_height(10)
   batwidget:set_vertical(true)
-  batwidget:set_background_color('#494B4F')
+  batwidget:set_background_color("#494B4F")
   batwidget:set_border_color(nil)
-  batwidget:set_color('#AECF96')
-  batwidget:set_gradient_colors({ '#AECF96', '#88A175', '#FF5656' })
-  vicious.register(batwidget, vicious.widgets.bat, '$2', 61, 'BAT0')
+  batwidget:set_color("#AECF96")
+  batwidget:set_gradient_colors({ "#AECF96", "#88A175", "#FF5656" })
+  vicious.register(batwidget, vicious.widgets.bat, "$2", 61, "BAT0")
 
   - updated every 61 seconds, requests the current battery charge
     level and displays a progressbar, provides "BAT0" battery ID as an
@@ -388,10 +388,10 @@ Battery widget
 CPU usage widget
   cpuwidget = awful.widget.graph()
   cpuwidget:set_width(50)
-  cpuwidget:set_background_color('#494B4F')
-  cpuwidget:set_color('#FF5656')
-  cpuwidget:set_gradient_colors({ '#FF5656', '#88A175', '#AECF96' })
-  vicious.register(cpuwidget, vicious.widgets.cpu, '$1', 3)
+  cpuwidget:set_background_color("#494B4F")
+  cpuwidget:set_color("#FF5656")
+  cpuwidget:set_gradient_colors({ "#FF5656", "#88A175", "#AECF96" })
+  vicious.register(cpuwidget, vicious.widgets.cpu, "$1", 3)
 
   - updated every 3 seconds, feeds the graph with total usage
     percentage of all CPUs/cores
@@ -427,10 +427,10 @@ Example
     seconds (the default interval)
 
 Example
-  uptimewidget = widget({ type = 'textbox' })
+  uptimewidget = widget({ type = "textbox" })
   vicious.register(uptimewidget, vicious.widgets.uptime,
     function (widget, args)
-      return string.format('Uptime: %2dd %02d:%02d ', args[1], args[2], args[3])
+      return string.format("Uptime: %2dd %02d:%02d ", args[1], args[2], args[3])
     end, 61)
 
   - uses string.format for padding uptime values to a minimum amount
@@ -442,9 +442,9 @@ textbox widgets by changing their .width field (by default width is
 automatically adapted to text width).
 
 Example
-  uptimewidget = widget({ type = 'textbox' })
-  uptimewidget.width, uptimewidget.align = 50, 'right'
-  vicious.register(uptimewidget, vicious.widgets.uptime, '$1 $2:$3', 61)
+  uptimewidget = widget({ type = "textbox" })
+  uptimewidget.width, uptimewidget.align = 50, "right"
+  vicious.register(uptimewidget, vicious.widgets.uptime, "$1 $2:$3", 61)
 
   - forces a fix width of 50px to the uptime widget, and aligns its
     text to the right