Fix typos in Elixir docs
Fix typos in Elixir docs

Found a spelling mistake - 
`shorcuts` > `shortcuts`
joshprice/elixir,gfvcastro/elixir,kelvinst/elixir,pedrosnk/elixir,ggcampinho/elixir,lexmag/elixir,pedrosnk/elixir,kelvinst/elixir,antipax/elixir,beedub/elixir,beedub/elixir,lexmag/elixir,elixir-lang/elixir,kimshrier/elixir,kimshrier/elixir,michalmuskala/elixir,antipax/elixir,ggcampinho/elixir,gfvcastro/elixir