Use fork of sphinx-click

Author: domdfcoding

doc-source/requirements.txt

@@ -1,11 +1,11 @@
+git+https://github.com/domdfcoding/sphinx-click.git
 autodocsumm>=0.2.0
 default-values>=0.2.0
 domdf-sphinx-theme>=0.1.0
 extras-require>=0.2.0
 seed-intersphinx-mapping>=0.1.1
 sphinx>=3.0.3
 sphinx-autofixture>=0.1.0
-sphinx-click>=2.5.0
 sphinx-copybutton>=0.2.12
 sphinx-notfound-page>=0.5
 sphinx-prompt>=1.1.0