Marked: Update refined GitHub README with Safari extension

[joshbruce]

Marked version: 0.3.17

Markdown flavor: n/a

Proposal type: other

What pain point are you perceiving?

Was recommended I use refined GitHub, which is a browser extension. I use Safari.

Safari extension not listed in refined-github README. Didn't chase the squirrel beyond issue 14, which states a link to the extension was placed in the README.

What solution are you suggesting?

• [ ] Clone refined GitHub
• [ ] Update README with link to Safari extension
• [ ] Consider the PR describing following content guidelines...this is where I dropped off because I was in the midst of eating and thought this was going to be simple.

[UziTech]

Why is this marked issue? Shouldn't this be a refined GitHub issue

[joshbruce]

@UziTech: Fair question and point. Was thinking it might be nice of us to do at some point. Probably could have been assigned to me. I blame feeling under the weather and trying a bit too hard to be Helpy McHelperson. ;)