Replace small PNG logo with SVG

README.md

@@ -1,4 +1,4 @@
-Awesome Wagtail [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome) [<img src="https://github.com/torchbox/wagtail/blob/82171f70faaf0c8b8da278261e6f45fed529c899/docs/logo.png" width="83" align="right" alt="Wagtail">](https://wagtail.io/)
+Awesome Wagtail [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome) [<img src="logo.svg" width="104" align="right" alt="Wagtail">](https://wagtail.io/)
 ===============
 
 > A curated list of awesome packages, articles, and other cool resources from the Wagtail community.