Add Grasping Deep Learning post

[JafarAbdi]

Description

Please explain the changes you made, including a reference to the related issue if applicable

Checklist

• Tested modified webpage locally using the build_locally.sh script
• While waiting for someone to review your request, please consider reviewing another open pull request to support the maintainers

[mamoll]

Looks good. We just need to remember to update the link to the tutorial to the official moveit_tutorials repo once moveit/moveit_tutorials#521 is merged. I just approved that PR and asked John to review it as well, so maybe just give it another day, in case we can that PR merged first.

[JStech]

Viewing the post through GitHub is not rendering the table with the two images correctly (it's showing the markup in-line). I don't know, though, if that needs to be fixed here or if it will still render correctly when viewed through the website.

[mamoll]

It renders correctly when built locally. @JStech if that was the only issue, can you approve and merge?

[JStech]

Approved. I can't merge, though.

[felixvd]

Didn't build it locally, but it looks good to me. I'm good with merging after the comment is addressed (I don't insist on that change in particular, but just have another look at it).