A 2nd pass at minor tweaks to the intro section.
2nd pass at the defining our first word section.
Minor edits to the parsing words section.
Minor edits to the stack shuffling section.
Minor tweak.
Editing on the combinator section. Did a bit of reordering and adding some interstitial examples to try to slow the pace down a bit. This section is a bit too fast and furious for the new Factor user, so I tried to slow it down a bit.
Small edits in a 2nd pass on the combinator section.
Small style edit to Combinators section.
Merge pull request #4 from belucid/master

Small edits in the 2nd main area of the tutorial