Mention list of reserved and unreserved chars in docs (#8881)
Mention list of reserved and unreserved chars in docs (#8881)


joshprice/elixir,ggcampinho/elixir,elixir-lang/elixir,pedrosnk/elixir,lexmag/elixir,kimshrier/elixir,pedrosnk/elixir,michalmuskala/elixir,lexmag/elixir,ggcampinho/elixir,kelvinst/elixir,kelvinst/elixir,kimshrier/elixir