Minor grammar edits to Installation and Quick Start pages
Added some grammar and spelling corrections to Installation and Quick Start Guide.
Merge remote-tracking branch 'origin/topic/jdopheid/bro/edits_to_installation_and_getting_started'

* origin/topic/jdopheid/bro/edits_to_installation_and_getting_started:
  Added some grammar and spelling corrections to Installation and Quick Start Guide.
  Minor grammar edits to Installation and Quick Start pages

BIT-1123 #merged