Add documentation

[waybackarchiver]

Description

We use mkdocs to create the wayback documentation, which can be published on GitHub Pages. To do this, needs to enable this feature for the repository and set a custom domain.

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Issue Ticket Number

Close #165
Relates to #273

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Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

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Checklist

• I have followed the contributing guidelines of this project as mentioned in CONTRIBUTING.md
• I have checked to ensure there aren't other open Pull Requests for the same update/change?
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes needed to the documentation

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.39 ⚠️

Comparison is base (08cb62c) 45.50% compared to head (e1c6f00) 45.11%.

❗ Current head e1c6f00 differs from pull request most recent head 8ed7976. Consider uploading reports for the commit 8ed7976 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #330      +/-   ##
==========================================
- Coverage   45.50%   45.11%   -0.39%     
==========================================
  Files          56       56              
  Lines        5193     5193              
==========================================
- Hits         2363     2343      -20     
- Misses       2571     2593      +22     
+ Partials      259      257       -2     

Impacted Files	Coverage Δ
service/telegram/telegram.go	32.95% <0.00%> (-6.54%)	⬇️
publish/nostr/nostr.go	40.22% <0.00%> (-2.30%)	⬇️
service/slack/slack.go	5.57% <0.00%> (+0.58%)	⬆️
service/twitter/twitter.go	35.97% <0.00%> (+2.15%)	⬆️

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