Minor ExUnit docs improvements (#7022)
Minor ExUnit docs improvements (#7022)


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