Added theme documentation to config.ini.

config/vufind/config.ini

@@ -22,9 +22,15 @@ url             = http://library.myuniversity.edu/vufind
 email           = support@myuniversity.edu
 title           = "Library Catalog"
 ; This is the default theme for non-mobile devices (or all devices if mobile_theme
-; is disabled below)
+; is disabled below). Available standard themes:
+;   blueprint = XHTML theme using Blueprint + jQuery libraries
+;   bootstrap = HTML5 theme using Bootstrap + jQuery libraries, with minimal styling
+;   bootprint = bootstrap theme styled to resemble blueprint theme
 theme           = blueprint
-; Uncomment the following line to use a different default theme for mobile devices
+; Uncomment the following line to use a different default theme for mobile devices.
+; You may not wish to use this setting if you are using one of the Bootstrap-based
+; standard themes since they support responsive design. Available mobile theme:
+;   jquerymobile = Theme built using jQuery Mobile framework
 ;mobile_theme    = jquerymobile
 ; This is a comma-separated list of themes that may be accessed via the ?ui GET
 ; parameter.  Each entry has two parts: the value used on the URL followed by the