Description of problem: There are a lot of markdown files present under /doc directory of the project which are having markdown formatting errors which make these files look really shabby when open on GitHub.
REVIEW: https://review.gluster.org/22825 (Fixing formatting errors in markdown files) posted (#2) for review on master by Kshithij Iyer
REVIEW: https://review.gluster.org/22825 (Fixing formatting errors in markdown files) merged (#3) on master by Amar Tumballi