Add EEx deprecation to Deprecations.md (#6265)
Add EEx deprecation to Deprecations.md (#6265)


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