Merge pull request #122 from github/sensitive-data-removal-policy-upd…

…ate-summer-2018

Update github-sensitive-data-removal-policy.md

Merge pull request #110 from github/minor-edits-and-formatting-spring…

…-2018

Minor edits and formatting

Merge pull request #88 from github/github-minor-update-october-2017

Adding updates

Replacing capitalized "Users" from previous version