Update README

[Olexandr88]

Made some additions and changes to the documentation

Please add a reference to the issue that this PR addresses and indicate which
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please include "Closes #XXX" (where "XXX" is the issue number).

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PR checklist

• Tests written/updated
• Changelog entry added in .changelog (we use unclog to manage our changelog)
• Updated relevant documentation (docs/ or spec/) and code comments
• Title follows the Conventional Commits spec

[github-actions]

Hey there and thank you for opening this pull request! 👋🏼

We require pull request titles to follow the Conventional Commits specification and it looks like your proposed title needs to be adjusted.

Details:

No release type found in pull request title "Update README". Add a prefix to indicate what kind of release this pull request corresponds to. For reference, see https://www.conventionalcommits.org/

Available types:
 - feat
 - fix
 - build
 - chore
 - ci
 - docs
 - refactor
 - perf
 - test
 - revert
 - spec
 - merge

General format: type(scope): msg
Breaking change: type(scope)!: msg
Multi-scope change: type: msg
Types: feat, fix, build, chore, ci, docs, refactor, perf, test, revert, spec, merge.
Example: fix(cmd/cometbft/commands/debug): execute p.Signal only when p is not nil