Auto merge of #14287 - jerodsanto:patch-1, r=metajack

Add Changelog episode badge to README

Thanks for coming on the show @metajack! We've added this badge to the README to share your episode with your community. 💚

Links to: https://changelog.com/podcast/228

- [x] These changes do not require tests because they only update the README

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README.md

@@ -1,6 +1,6 @@
 # The Servo Parallel Browser Engine Project
 
-[![Linux Build Status](https://img.shields.io/travis/servo/servo/master.svg?label=Linux%20build)](https://travis-ci.org/servo/servo)  [![Windows Build Status](https://img.shields.io/appveyor/ci/servo/servo/master.svg?label=Windows%20build)](https://ci.appveyor.com/project/servo/servo/branch/master)
+[![Linux Build Status](https://img.shields.io/travis/servo/servo/master.svg?label=Linux%20build)](https://travis-ci.org/servo/servo)  [![Windows Build Status](https://img.shields.io/appveyor/ci/servo/servo/master.svg?label=Windows%20build)](https://ci.appveyor.com/project/servo/servo/branch/master)  [![Changelog #228](https://img.shields.io/badge/changelog-%23228-9E978E.svg)](https://changelog.com/podcast/228)
 
 Servo is a prototype web browser engine written in the
 [Rust](https://github.com/rust-lang/rust) language. It is currently developed on