readme: update readme badges

davecheney · davecheney · commit 646ce281010c · 2019-08-15T11:00:30.000+10:00
Taking a leaf from ocatant's book.

Signed-off-by: Dave Cheney &lt;dave@cheney.net&gt;
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-# Contour [![Build Status][1]][2] [![Go Report Card][21]][22]
+# Contour [![Build Status][1]][2] [![Go Report Card][21]][22] ![GitHub release](https://img.shields.io/github/release/heptio/contour.svg) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 
 ![Contour is fun at parties!](contour.png)
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Contour [![Build Status][1]][2] [![Go Report Card][21]][22]`
	`1`	`+# Contour [![Build Status][1]][2] [![Go Report Card][21]][22] ![GitHub release](https://img.shields.io/github/release/heptio/contour.svg) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)`
`2`	`2`
`3`	`3`	`![Contour is fun at parties!](contour.png)`
`4`	`4`