sphinx-autobuild goes into infinite loop

[rgaiacs]

Like in jupyterhub/team-compass#825, sphinx-autobuild would go into infinite loop because

mybinder.org-user-guide/doc/conf.py

Lines 134 to 138 in 2702d28

	run(shlex.split(f"python _data/scripts/load_pages_from_r2d.py"))
	# Generate snippets for federation/support
	run(shlex.split(f"python _data/scripts/gen_federation_md.py"))
	run(shlex.split(f"python _data/scripts/gen_support_md.py"))

The solution is to replace the Python script with Sphinx extension, see jupyterhub/team-compass#826.