Fix examples indentation in the File docs
Fix examples indentation in the File docs

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