Fix minor typo

Changed  to
Merge pull request #1952 from metalivedev/1909-cherrypick

Fix minor typo
Merge pull request #1901 from jalateras/update-contributring-docs

Fix #1664
Merge pull request #1932 from jcassee/patch-1

Download Ubuntu 13.04 repository key over HTTPS
Merge pull request #1929 from tianon/gentoo-docs

Simplified Gentoo install instructions now that our overlay is in the official layman repositories.xml list
Merge pull request #1954 from metalivedev/1901-cherrypick-builddocker

1901 1929 1932 cherrypick to release and docs
Hack: remove deprecated files
hack/MAINTAINERS.md: a maintainer's manual.
Hack: update release checklist and reference it in REAMDE
Update maintainer's manual: every change should be done in a pull request.
Hack: update README
Bump to version v0.6.3
Hack: correct typo in release checklist
various command fixes

Indicating the repository and tag should be separated by a space and not a '/'. Also fixed a quote typo.
use su instead of sudo
Merge pull request #1970 from dotcloud/cleanup-hack

Cleanup and reorganize docs and tooling for contributors and maintainers
Merge pull request #1972 from dotcloud/bump_0.6.3

Bump to version v0.6.3
Add several of the small make.sh fixes from #1920, and make the output more consistent and contributor-friendly, since release instructions already exist in release.sh
revert removal of slash betwixt user/repo
Merge pull request #1983 from blissdev/patch-1

various command fixes in postgres example