Added support for arrays in Livedocs
Merge pull request #504 from sendgrid/array_support

Added support for arrays in our live docs.
Fixed broken markdown links
Update categories.md
Update index.html
Update sending_practices.md

Remove a broken link.
Merge pull request #509 from johnvajda/develop

Update sending_practices.md
Update template_engine.md

We need customer-facing documentation to display the numerical limitation on Templates/Versions.
Merge pull request #510 from PeterEvans1/patch-2

Update template_engine.md
encapsulated template note
Merge branch 'pr/510' into develop
Update email_activity.md

added better verbage to show that Email Activity is read only and to use the damn Event Webhook.
Adding a vidgrid video, changing name of directory

The video i am trying to add under the Recipients directory:
http://youtu.be/zrovEyBKDv4?list=UUY6NAKPOZkBaMO4-KJ6dWRA
Merge pull request #506 from sendgrid/develop

array support for livedocs