Update config.toml

Author: richvdh

config.toml

@@ -90,7 +90,7 @@ sidebar_menu_compact = true
 # 	url = "https://github.com/matrix-org"
 # 	icon = "fab fa-github"
 #   desc = "Matrix on GitHub"
-# Custom links shown in the center of the footer.
+# Custom links shown in the center of the footer. (Only supported by our fork of docsy's 'footer/central' partial.)
 [[params.links.bottom]]
 	name = "GitHub"
 	url = "https://github.com/matrix-org"