doc: fix scripts and regenerate (#12506)

* Fix some small doc issues

* doc: fixup

* doc: fixup

* Fix lint and rebase

* Remove bad advice

* Ugh, stupid mpack files...

* Don't let people include these for now until they specifically want to

* Prevent duplicate tag

src/nvim/lua/vim.lua

@@ -255,6 +255,8 @@ function vim.schedule_wrap(cb)
   end)
 end
 
+--- <Docs described in |vim.empty_dict()| >
+--@private
 function vim.empty_dict()
   return setmetatable({}, vim._empty_dict_mt)
 end