Fix typo in String documentation: padding -> pad
Fix typo in String documentation: padding -> pad
lexmag/elixir,elixir-lang/elixir,pedrosnk/elixir,gfvcastro/elixir,kelvinst/elixir,beedub/elixir,kimshrier/elixir,ggcampinho/elixir,joshprice/elixir,beedub/elixir,gfvcastro/elixir,kelvinst/elixir,ggcampinho/elixir,lexmag/elixir,kimshrier/elixir,antipax/elixir,michalmuskala/elixir,pedrosnk/elixir,antipax/elixir