passing options to marked

[DanielLarsenNZ]

@brainshave I want to enable GFM and Tables in marked. I can't create an issue on the Zetzer fork - can you transfer ownership/enable issues on brainshave/zetzer ? If you don't have this on your immediate roadmap I would be happy to fork and PR :)

[szymonrw]

Hey @DanielLarsenNZ , I didn't know that issues are disabled by default on forks. Thanks for pointing it out! I've enabled it now. I think enabling tables is a cool idea! :-)