Over time docs were added or updated such that they were
no longer in alphabetical order based on the index order
or their title strings. Tried to fix it up a bit along
with some capitalization.
Trivialfix
Change-Id: I948b2a1c86faaffed07adcf0198a3fba72401abe
It has been suggested in the Neutron CI meeting to include a section in
the documentation advicing against blind rechecks. It turns out that
such section already exists. What this change does is to move the
section to the first level of the contributors guide, to make it more
visible. This change also improves some wording and adds some examples
of proper recheck comments.
Change-Id: Ib0a00d13a28f98b0a0f26c7233365d04453db4e0