Add colorama mock for Sphinx

docs/source/conf.py

@@ -18,7 +18,7 @@
 # On Read the Docs, need to mock any python packages that would require c
 from unittest.mock import MagicMock
 
-MOCK_MODULES = ["mpi4py"]
+MOCK_MODULES = ["mpi4py", "colorama"]
 sys.modules.update((mod_name, MagicMock()) for mod_name in MOCK_MODULES)