Update deps and docs

[ryanwinchester]

It's nice to see modern docs and it's nice when docs link to the repo/source code.

[michalmuskala]

Thanks, this looks pretty good.

However, I think the 18.04 runner for github actions has been sunset. Could you update to 20.04?
I recently updated the Jason CI versions, if you need some reference https://github.com/michalmuskala/jason/blob/master/.github/workflows/ci.yml

[ryanwinchester]

However, I think the 18.04 runner for github actions has been sunset. Could you update to 20.04?

The table from erlef/setup-beam:

Operating system	Erlang/OTP	Status
ubuntu-18.04	17 - 25	✅
ubuntu-20.04	20 - 25	✅
ubuntu-22.04	24.2 - 25	✅
windows-2019	21* - 25	✅
windows-2022	21* - 25	✅

means we have to change the elixir/otp combos up too i guess

[michalmuskala]

As you can see, the 18.04 jobs are just pending since github no longer provides runners with this os version.
We can start testing from OTP 20 & Elixir 1.4 similar to Jason - older versions are for a long time no longer supported and I'm fine with dropping them from automated tests.

[ryanwinchester]

As you can see, the 18.04 jobs are just pending since github no longer provides runners with this os version.
We can start testing from OTP 20 & Elixir 1.4 similar to Jason - older versions are for a long time no longer supported and I'm fine with dropping them from automated tests.

Yeah, you're right. Copied the Jason versions.

[ryanwinchester]

Should I roll back some of the deps updates?