[docs] Removed a few lies from the "How to Run Parrot" documentation.  Minor formatting and phrasing improvements too.
[docs] Removed a few lies from the "How to Run Parrot" documentation.  Minor
formatting and phrasing improvements too.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@25730 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot