Better CI file Docs

[MahdiBM]

As I mentioned to @hassila while he was helping me understand this great benchmarking package, I've put together some CI files that I think can be very nice to have for others as well.

I propose updating the docs CI section to point to a bunch of different sample CI files, each with a short explanation, so users have options on choosing how to put together their CI.

To meet our needs at work, I've created these 2 CI files that I propose to somehow add to the docs since they can be helpful for others as well:

1. Benchmarking against thresholds. Advantages compared to the default CI that currently is in the docs:

• Checks against static thresholds, not the default branch.
• Caches the .build for faster benchmarking.
• Sends a comment with full info to the related PR, if existent.
• The benchmark results are attached to the comment too, other than the check result.
• The formatting looks much nicer:
  • The blue timestamp text, links to a website to see the time in your own timezone if needed.

2. Updating Thresholds Using The Same CI Running The Benchmarks

• You can manually trigger this workflow for your branches.
• It then commits the changes to the branch.

[hassila]

Hi @MahdiBM, sorry for the long turn around, but the raft of cases you created lead to a new improved implementation in n #284 for static thresholds management. Would be great if you would have a look and see if it clears up most of your issues - it leads to this issue to be updated to the new commands for static threshold management then - if you're up for it?