* some breathing space for the sidebar.
* The main headings for the articles also get repeated in the ToC.
 Fixed it by removing the first element of the array. The RDoc ToC
generator does not have a method to deselect headings based on their
type as of now.

* HTML links are not parsed. Removed the redundant "top" links since
* they are auto-generated by the RDoc ToC parser.
syntax and style fixes
reverting the RDoc ToC slicing for now
dont parse the file twice