Merge pull request #325 from Vonng/master

add pigsty to distributions & pg_exporter to monitoring

Author: kmoppel

README.md

@@ -89,6 +89,7 @@ For Database Management
 ### Distributions
 * [Postgres.app](https://postgresapp.com/) - The Easiest Way to Get Started with PostgreSQL on macOS.
 * [PostgreSql.Binaries.Lite](https://github.com/mihasic/PostgreSql.Binaries.Lite) - Minimum set of Windows binaries of the PostgreSQL database. Also made available through NuGet.
+* [Pigsty](https://github.com/Vonng/pigsty) - Battery-Included Open-Source Distribution for PostgreSQL with ultimate observability & Database-as-Code toolbox for developers.
 
 ### CLI
 * [atlas](https://github.com/ariga/atlas) - Atlas is a tool for managing and migrating database schemas using modern DevOps principles.
@@ -119,6 +120,7 @@ For Database Management
 * [opm.io](http://opm.io) -  Open PostgreSQL Monitoring is a free software suite designed to help you manage your PostgreSQL servers. It can gather stats, display dashboards and send warnings when something goes wrong.
 * [okmeter.io](https://okmeter.io/pg) - Commercial SaaS agent-based monitoring with a very detailed PostgreSQL plugin. It automatically gathers 100s of stats, displays dashboards on every aspect and sends alerts when something goes wrong (Commercial Software).
 * [dexter](https://github.com/ankane/dexter) - The automatic indexer for Postgres. Detects slow queries and creates indexes if configured to do so.
+* [pg_exporter](https://github.com/Vonng/pg_exporter) - Fully customizable Prometheus exporter for PostgreSQL & Pgbouncer with fine-grained execution control.
 
 ### Extensions
 * [Citus](https://github.com/citusdata/citus) - Scalable PostgreSQL cluster for real-time workloads.