Reformat readme a bit more

Cleanup tables

Change-Id: Ifc91d63cad4074fd48a52f921b0597d71af8cd1d

Conflicts:
	README.md
Change-Id: I2fcab8e9de04de035645afb2fbd69db2830f93f9
Reviewed-on: http://review.couchbase.org/27837
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>