OTP Supervisors: Fix the examples to use opts variable (#1421)
OTP Supervisors: Fix the examples to use opts variable (#1421)

* Fix the examples to use opts variable

The examples for supervisors set the `opts` variable but never used. Instead passed another set of options when starting supervisors. This is clearly a mistake and I just corrected that.

* Bump the version number of the lesson

nscyclone/elixir-school,doomspork/elixir_school,doomspork/elixir-school,doomspork/elixir_school,doomspork/elixir-school,nscyclone/elixir-school,doomspork/elixir_school,doomspork/elixir-school,nscyclone/elixir-school,nscyclone/elixir-school