Update README.md

ildus · web-flow · commit 696321d4d4eb · 2017-12-20T12:08:30.000+03:00
diff --git a/README.md b/README.md
@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/postgrespro/pg_wait_sampling.svg?branch=master)](https://travis-ci.org/postgrespro/pg_wait_sampling)
+[![PGXN version](https://badge.fury.io/pg/pg_wait_sampling.svg)](https://badge.fury.io/pg/pg_wait_sampling)
 [![GitHub license](https://img.shields.io/badge/license-PostgreSQL-blue.svg)](https://raw.githubusercontent.com/postgrespro/pg_wait_sampling/master/LICENSE)
 
 `pg_wait_sampling` – sampling based statistics of wait events

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`[![Build Status](https://travis-ci.org/postgrespro/pg_wait_sampling.svg?branch=master)](https://travis-ci.org/postgrespro/pg_wait_sampling)`
	`2`	`+[![PGXN version](https://badge.fury.io/pg/pg_wait_sampling.svg)](https://badge.fury.io/pg/pg_wait_sampling)`
`2`	`3`	`[![GitHub license](https://img.shields.io/badge/license-PostgreSQL-blue.svg)](https://raw.githubusercontent.com/postgrespro/pg_wait_sampling/master/LICENSE)`
`3`	`4`
`4`	`5`	`pg_wait_sampling` – sampling based statistics of wait events