Change location of toc (#876)
Change location of toc (#876)

It is confusing to see the toc including the `Why use Poolboy?` when you have just read it.
doomspork/elixir_school,yuriibodarev/elixir-school,psantos10/elixir-school,huydx/elixir-school,nscyclone/elixir-school,doomspork/elixir-school,doomspork/elixir_school,ElixirVietnam/elixir-school,huydx/elixir-school,erickgnavar/elixir-school,doomspork/elixir_school,nscyclone/elixir-school,psantos10/elixir-school,nscyclone/elixir-school,nscyclone/elixir-school,ElixirVietnam/elixir-school,doomspork/elixir-school,yuriibodarev/elixir-school,yuriibodarev/elixir-school,erickgnavar/elixir-school,erickgnavar/elixir-school,psantos10/elixir-school,doomspork/elixir-school,ElixirVietnam/elixir-school,huydx/elixir-school