Correct hyphenation
Add $ char in front of command line examples
Add s-form of simple present tense to all command description
Add line break for easier non Markdown-rendered reviewing
Fix s-form of simple present tense to refactor description
Correct word spacing, adverb modifier
Fix grammar inconsistencies
Remove non-standard hyphenation
Merge pull request #69 from github/cheat-sheet-v1.1.1

Cheat sheet grammar and punctuation update