specs.ipfs.tech should link to github sources

[lidel]

It is not clear how one can get to the sources of the websie, how to open a PR to fix a typo or propose clarification / discuss potential IPIP.

Every page should have a link to github source of itself.

Some prior art:

• W3C links to commit history in the header preamble:

  

• Our utility websites have github icon

  

I think adding entry after editors to the header of each spec with "Git source" and "Commit history" with GH icon which we already use for personal github lrofile links would be good enough.

@darobin @hacdias thoughts?

[darobin]

Yes, absolutely, we have that filed at ipfs/spec-generator#10.

I also like this, which we have in W3C:

[hacdias]

I can definitely take that on after IPFS Thing. It should be reasonably easy to add the link.