Fix all-contributors badge

Author: codytodonnell

README.md

@@ -1,6 +1,6 @@
 # STRUDEL Kit
 
-[![All Contributors](https://img.shields.io/github/all-contributors/strudel-science/strudel-kit?color=ee8449&style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/github/all-contributors/strudel-science/strudel-kit)](#contributors)
 
 STRUDEL Kit is a set of modern fullstack templates and components for building scientific apps based on the STRUDEL Design System and Task Flows. Visit [strudel.science](https://strudel.science) for more information about the STRUDEL project.