Add detailed information for each check

[SButterfly]

Hello

Please, add detailed documentation about each check in the README and java docs.

The detailed documentation should include:

• What this check is about
• What could go wrong if not fix it

It should help quickly onboard new engineers, who are not familiar with the library, but have to fix the failure.
Currently, the detailed documentation is mostly stored in habr.com and in the Russian language. This adds more barriers for English-speaking engineers to dig into the issue and fix it.

Thank you!

[marijarin]

I'd like to work on this issue as I want to understand better how the library works.

[mfvanek]

I'd like to work on this issue as I want to understand better how the library works.

@marijarin it would be great!

You may to add a new doc folder in the root of the project.
Then add two folders inside it: eng and rus.
Each check documentation may be stored in separate *.md file.
You may start with documentation in Russian language and then translate it to English using ChatGPT or another LLM.
You may create a PR for each file.

[mfvanek]

Watch first of all

1. https://www.youtube.com/watch?v=ejLzS6rVpkk
2. https://www.youtube.com/watch?v=jGOkSerUPw4

Start with

1. https://habr.com/ru/articles/490824/
2. https://habr.com/ru/articles/800121/
3. https://habr.com/ru/articles/803841/
4. https://habr.com/ru/articles/821993/

Additional videos

1. https://www.youtube.com/watch?v=aaecM4wKdhY
2. https://www.youtube.com/watch?v=ju9F8OvnL4E&t=9s

Additional articles

1. https://habr.com/ru/companies/postgrespro/articles/697300/
2. https://habr.com/ru/companies/postgrespro/articles/672004/
3. https://habr.com/ru/articles/756074/