Provide alternative way to use meta-editor. Rawgit is shutting down.

[rizdaprasetya]

Description:

Rawgit is shutting down 😢

RawGit has reached the end of its useful life
October 8, 2018
RawGit is now in a sunset phase and will soon shut down. It's been a fun five years, but all things must end.
GitHub repositories that served content through RawGit within the last month will continue to be served until at least October of 2019. URLs for other repositories are no longer being served.
If you're currently using RawGit, please stop using it as soon as you can.

I saw that on README.md people are linked to rawgit to use the meta-editor:
https://github.com/MycroftAI/mycroft-skills#meta-editor

Consider changing the link to similar service or provide alternative method.

Some ideas:

• Hosting the meta_editor.html file using github pages
• Hosting the meta_editor.html file on a server. Or use free service like surge.sh, now.sh, netlify.com
• Worst case if no similar service found, people can just download the meta_editor.html and open the file locally from their browser.