WIP pg + node article
WIP
Add db-migrate section
Section article

Migrations, PostgreSQL Client, Application SQL
Add postgres client things
PG client WIP
WIP Application SQL
Add wrap up section
EDITS!
nesting things
Sentence restructuring
edits yo
i could edits 4ever...
More edits, but ready I think
Merge branch 'article/node-on-pg' into develop