[Implimented] Add extra example to @as for when type is an array.

[muppet9010]

When using the --[[@as TYPE]] I was thrown for a bit on how to handle an array type, i.e. string[].
As the below fails due to early comment termination:
--[[@as string[]]]

Both of the below seem to work and maybe one/both should be added to the @as documentation?
--[[@as string[]--]]
--[[@as string[] ]]
https://github.com/sumneko/lua-language-server/wiki/EmmyLua-Annotations#as

[Nexela]

--[[@as (string[])]]

[sumneko]

--[=[@as string[]]=]

[muppet9010]

an example of this has been included in the very nice new wiki by carsakiller :)