Update for issue #535

Update to indicate silver accounts and higher will get this feature
Merge pull request #554 from mbernier/patch-1

Update for issue #535
changed enabled to enable

enabled fails silently so it may appear to work, but enable is the actual setting name.
Merge pull request #556 from sendgrid/develop

deploy 🍰
Adding SendWithUs VidGrid

Adding SendWithUs VidGrid
Updated Python Web Hook Code Example

Fixed syntax, added imports to simplejson and flask. and more, ayo
removed the space, fixed the glitch
Merge pull request #558 from mbernier/patch-2

removed the space, fixed the glitch
Merge pull request #557 from 0xdeafcafe/develop

Updated Python Web Hook Code Example
Remove feedback and edit from print stylesheet

Closes #405
Merge pull request #559 from mbernier/patch-3

Remove feedback and edit from print stylesheet
transacation -> transaction
Merge pull request #560 from mbernier/patch-4

transacation -> transaction
Show ip_pools page
Rolling back these changes for IP pools

@johnvajda - please double check that this is all still valid.

I just rolled back these changes: https://github.com/sendgrid/docs/commit/6bc031aa8dab92bb832d2bd727b1deccb0c6ecb6
Merge pull request #561 from mbernier/patch-5

Rolling back these changes for IP pools
Merge pull request #562 from sendgrid/develop

Deploy 🗽
Updated info on warm up schedule importance

There were a lot of questions on this, and I felt this would be good info to have on the docs.
Fix vidgrid sendwithus video iframe

Re: #564
Update index.html

changed name from Windows Azure to Microsoft Azure, they've rebranded it