updated link to commotion logo and added .svg per #183
added link to wasabi net's blog re: DIY shielding on back to back node mounts
Adding guest blog post.
Adding teaser image for blog post.
Slight formatting tweaks to guest post.
Merge pull request #185 from opentechinstitute/guest-blog

Merging to test, will actually assign the live pull request to someone other than me.
Merge pull request #184 from opentechinstitute/staging

merging recent changes from staging to master