Add django-extensions to contributors

README.md

@@ -182,10 +182,10 @@ These are people who aren't in our formal git history but should be.
 - [Tim Schilling](https://github.com/tim-schilling) assisted with the `model_graph` method
 - [Charlie Denton](https://github.com/meshy) is responsible for django-schema-graph, which we leverage as part of the `model_graph` feature
 - [Christopher Clarke](https://github.com/chrisdev) built `django-pandas`, which dj-notebook uses
-- [
-Stephen Moore](https://github.com/delfick) for some early work done on the internals of dj-notebook before it was open sourced.
+- [Stephen Moore](https://github.com/delfick) for some early work done on the internals of dj-notebook before it was open sourced.
+- [django-extensions](django-extensions) for providing so many useful tools over the years, and being one of the backbones of this project
 
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+<!-- readme: prestto,evieclutton,tim-schilling,meshy,chrisdev,delfick,django-extensions -start -->
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@@ -231,7 +231,7 @@ Stephen Moore](https://github.com/delfick) for some early work done on the inter
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-<!-- readme: prestto,evieclutton,tim-schilling,meshy,chrisdev,delfick -end -->
+<!-- readme: prestto,evieclutton,tim-schilling,meshy,chrisdev,delfick,django-extensions -end -->
 
 ## Construction