Added Github links to navbar/ footer to hopefully increase contributions

[tomootes]

I created this PR for two reasons;

• I wanted to contribute to this project because i'm involved in the mission to make Open Source more discoverable.
• I realized, that as soon as you arrive on https://yml.publiccode.tools/, its tough to find the source code and find out if you can contribute. Despite it is actually fairly easy to contribute to this standard.

I added three things in this PR:

Github logo with link to repo in navbar

Link to Authors.md in footer + link to Github again

Added info to readme.md on how to develop locally
This answers the question immediately, that the website is build on Sphinx.

Concessions
Take note that i had to accept some concessions:

• The footer doesn't contain credits to Sphinx or the theme anymore. I hope this is acceptable.
• I had to completely replace the HTML of the navbar using a template. All functionality works still, but its what i had to do to be able to add the Github icon.

[bfabio]

Thanks @tomootes! Reviewing ASAP

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Name	Status	Preview	Comments	Updated (UTC)
publiccode-yml	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 26, 2024 1:05pm

[tomootes]

@ruphy. Thanks for the suggestion, I accepted it

[sebbalex]

Thanks @tomootes, I just pointing out a couple of catches

[tomootes]

Oioi, quite some mistakes in a small PR. Note to self: check it again in the morning :)

Should i rebase the branch? This cleans the commit history but wipes all proposed changes/ commits.

Are you guys happy with it?

[bfabio]

@tomootes i changed i couple of things in the development section and moved it. It looks good to me.

Let me know your take on the copyright thing and after that it's good to merge!

[tomootes]

Copyright thingy is fine! @bfabio lets merge 👍

[ruphy]

🙌