Jason Key November 01, 2017:  link fixes for TOC [0636cc9]
Jason Key October 12, 2017:  Add some TOC to the tops of the longer pages [82d2a7c]
Jason Key April 25, 2017:  typo fix [9e7f6ad]
Jason Key November 16, 2016:  Add some info on running programs from the shell. [376f8a1]
Jason Key September 29, 2016:  Add info on shell setup for users [4faa37c]