Merge pull request #16 from katgironpe/master

Added OHM for Redis
Some contribs v8...
Merge pull request #17 from ekremkaraca/master

Some contribs v8...
Fix table of content.
Add microrb.com.

> micro.rb aims at gathering small well focused ruby libraries,
> that do one thing and do it well. We are concerned about focus and clarity.
> Other metrics such as the number of dependencies and the lines of code also
> matter.
Merge pull request #18 from JuanitoFatas/doc/patch-1

Fix table of content.
Merge pull request #19 from JuanitoFatas/doc/patch-2

Add microrb.com.
Added gems for e-commerce