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I am at a phase of cleaning up my choice of plugins and I want to read the documentation provided by a package through vim it self.
With that in mind, I don't know a way to:
:h on themAn example of such is the package elzr/vim-json. I don't know what functions or settings this package exposes. Auto-completing :json or something gives nothing.
A feature that isn't documented is a useless feature.
:h design-documented
In theory, you can do :h local-additions (towards the bottom of :h) which will show you an index of all local plugins that you have installed (if they included documentation).
get to the top of the documentation for a specific package
Most documentation you can do :h {package-name} to get the documentation. You can use wildcards and tab completion to help you search. You may also like to use <c-d> list out completions.
Example:
:h win*(<tab>
:h win*(<c-d>
You can also search help files via :helpgrep (similar to :vimgrep). Use :helpgrep /{pattern}/ to search the helpfiles for {pattern}. The results will be put into the quickfix list. Use :cnext/:cprev to go thought the list and :copen to open the quickfix window.
see find functions or 'g' settings for a package so that I can call :h on them
It is up to the documentation author to write good help tags otherwise you are at the mercy of reading the entire help file or searching.
An example of such is the package elzr/vim-json. I don't know what functions or settings this package exposes.
Sadly, elzr/vim-json does not ship with Vim help documentation. From what I can tell it only has a github readme file.
Personally, I tend to avoid plugins that do not provide good Vim help documentation.
