Add docs for basic PostgreSQL configuration
Add docs for basic PostgreSQL configuration

Outlined steps required for setting up a simple PostgreSQL installation for
local use. Includes snippets for use on a Mac with Homebrew, and snippets for a
Debian Linux box.

Signed-off-by: Deepak Giridharagopal <d11186354d1ef01ca06ae37d7e23e827da13e85f@puppetlabs.com>

kbarber/puppetdb,puppetlabs/puppetdb,mullr/puppetdb,stahnma/puppetdb,kbarber/puppetdb,highb/puppetdb,puppetlabs/puppetdb,stahnma/puppetdb,puppetlabs/puppetdb,shrug/puppetdb,github/puppetlabs-puppetdb,waynr/puppetdb,nfagerlund/puppetdb,ajroetker/puppetdb,ajroetker/puppetdb,jantman/puppetdb,mullr/puppetdb,highb/puppetdb,highb/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,wkalt/puppetdb,grimradical/puppetdb,github/puppetlabs-puppetdb,rbrw/puppetdb,rbrw/puppetdb,waynr/puppetdb,johnduarte/puppetdb,rbrw/puppetdb,grimradical/puppetdb,kbrezina/puppetdb,nfagerlund/puppetdb,nfagerlund/puppetdb,shrug/puppetdb,shrug/puppetdb,senior/puppetdb,kbrezina/puppetdb,haus/puppetdb,waynr/puppetdb,johnduarte/puppetdb,haus/puppetdb,shrug/puppetdb,wkalt/puppetdb,kbrezina/puppetdb,waynr/puppetdb,senior/puppetdb,grimradical/puppetdb,jantman/puppetdb,grimradical/puppetdb,cprice404/puppetdb,jantman/puppetdb,melissa/puppetdb,mullr/puppetdb,ajroetker/puppetdb,johnduarte/puppetdb,wkalt/puppetdb,kbarber/puppetdb,kbrezina/puppetdb,ajroetker/puppetdb,stahnma/puppetdb,johnduarte/puppetdb,cprice404/puppetdb,kbarber/puppetdb,senior/puppetdb,mullr/puppetdb,puppetlabs/puppetdb,melissa/puppetdb,wkalt/puppetdb,haus/puppetdb,cprice404/puppetdb,highb/puppetdb,senior/puppetdb,mullr/puppetdb,github/puppetlabs-puppetdb,melissa/puppetdb,rbrw/puppetdb