I built a Safari Extension for my own use and some others might be interested. Basically it extracts the article from a page and creates a markdown draft of it.
https://github.com/ddegner/SafariToDrafts
Feel free to compile it yourself. If there is enough interest I might release the extension on the App Store.
I get a 404 error when trying to access the github repo. Perhaps it is set to private or has been removed?
I can not open that page on github. Error 404 
I get a 404 Error when going to the link you provided.
Still 404 error to provided link.
Very sorry, I forgot to change the repo to public.
It should work now: GitHub - ddegner/SafariToDrafts: A Safari extension for creating a draft out of a safari tab
I have been polishing the extension over the last month and submitted it to the App Store. I’ll update here when it is available.
It is my first time submitting anything to the app store so wish me luck.
I made it through the App Store process and the extension is now live!
Try it out here:
Hi David,
I downloaded from the app store (congrats on that), but I have not had a lot of luck building the extension, mostly due to signing issues. I will keep at it, but wanted to say thanks in the meantime!
This is really neat. Thanks for getting it released!
Sorry about the code signing, I just spent a couple hours trying to set it up so it can easily be distributed and hacked on and didn’t succeed. I may try again tomorrow.
Code signing is complicated and frustratingly opaque. I will let you know if I figure it out too.