.gitmodules: point to my cmark-gfm where the reffed commit actually is.

Author: kivikakk

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "vendor/cmark-gfm"]
 	path = vendor/cmark-gfm
-	url = https://github.com/github/cmark-gfm.git
+	url = https://github.com/kivikakk/cmark-gfm.git
 [submodule "vendor/pulldown-cmark"]
 	path = vendor/pulldown-cmark
 	url = https://github.com/raphlinus/pulldown-cmark.git