Adjusted README

Author: mcollina

README.md

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 # fastify-postgres
 
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-
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 Fastify PostgreSQL connection plugin, with this you can share the same PostgreSQL connection pool in every part of your server.
 Under the hood the [node-postgres](https://github.com/brianc/node-postgres) is used, the options that you pass to `register` will be passed to the PostgreSQL pool builder.