Add Code blocks for Wagtail using Pygments (#27)

https://jordijoan.me/code-blocks-wagtail-using-pygments/

A nice short blog post from Jordi.

README.md

@@ -139,6 +139,7 @@ Awesome Wagtail [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38
 - [Interactive 360 degree product views as a Wagtail streamfield block](http://www.djangopaths.com/interactive-360-degree-product-views-wagtail-streamfield-block/)
 - [Extending The Functionality of Email Forms in Wagtail](https://posts-by.lb.ee/dev-wagtail-extending-the-functionality-of-email-forms-232c8469ac97)
 - [Wagtail: 2 Steps for Adding Pages Outside of the CMS](https://www.caktusgroup.com/blog/2016/02/15/wagtail-2-steps-adding-pages-outside-cms/)
+- [Code blocks for Wagtail using Pygments](https://jordijoan.me/code-blocks-wagtail-using-pygments/)
 
 ### Recipes