Add Resource to free-courses-en.md#deep-learning

[SethFalco]

What does this PR do?

Add resource(s)

For resources

Description

• Fixes Added a new machine learning course #4099
• Links to the resources home rather than a particular module.
• Uses the title of the course rather than the name of a module.
• Appends authors.

I noticed during this one that MIT OpenCourseWare is written differently in a lot of the repo. On the website itself, they refer to themselves as MIT OpenCourseWare.
This PR seems a bit inconsistent, but later in a separate PR I'd like to fix that later by updating all the other instances ie MIT OCW, or MIT's opencourseware to match this one. (I can also add MIT OpenCourseWare to links that don't mention the vendor.)

Checklist:

• Read our contributing guidelines
• Search for duplicates.
• Include author(s) and platform where appropriate.
• Put lists in alphabetical order, correct spacing.
• Add needed indications (PDF, access notes, under construction)

Followup

• Check the output of Travis-CI for linter errors!