Update grammer and small text formatting
Merge pull request #70 from github/cheat-sheet-v1.1.1

Git Cheat Sheet v1.1.1
Fix Git Advanced slide deck URL
Merge pull request #72 from luissquall/master

Fix Git Advanced slide deck URL
First release of new workbooks
Fixes to dynamically parsed outline (needed H3)
Merge pull request #74 from github/update-workbook

First release of new workbooks
adding matt graham
Merge pull request #75 from github/mattgraham

Adding matt graham as trainer per Brazil Class
Stylesheets for workbook hiding address all H3 and H4 tactics for summary and detail
Format advanced workbook with summary and details markers
Relative path to page script for workbooks
Stylesheets beautification for workbooks
Formatting the advanced workbook
Style bulleted lists and code blocks
Styling workbooks
Video link type
Hyperlinks have better user interaction with hover states
Migrating old Foundations content to new Foundations
Workbook title polish