Merge pull request #5 from donnieberg/master

Draft2 of copy and add link styling
Add 20px to type scale & remove reference to number of promises

* Add 20px to type scale
* Remove references to number of promises
* Change title to Promises to Users
* Remove number headers
* Update title attr for additional reading links
Merge pull request #6 from xiaogwu/Add_20px_to_type_scale

Add 20px to type scale & remove reference to number of promises