Docs: Some Small Changes

[MarcosMeli]

Here are a list of small pending changes in different pages:

:white_check_mark: Unify some docs in Must Read page :white_check_mark: Add some tips about how to use the library :white_check_mark: Add info about Mono support :white_check_mark: Review the changelog to add links and more items :white_medium_small_square: Add new attributes :white_medium_small_square: Add small description to attributes