Simple Examples for keyRun?

[eeriemyxi]

Hi, I was reading https://github.com/gdh1995/vimium-c/wiki/Auto-run-a-tree-of-commands but I found the examples too complicated. All I want to do is mmgg, which creates a marker m then goes to the top of the page. How do I do that? Doing map gk runKey keys="mmgg" didn't work.