Add translation report reference to README.md (#2197)
Add translation report reference to README.md (#2197)

The translation report wasn't listed in the translation instructions
inside the README.md file. This makes the contribution process easier
for new people in the project, by pointing them to the work that needs
to be done.
nscyclone/elixir-school,doomspork/elixir_school,nscyclone/elixir-school,nscyclone/elixir-school,nscyclone/elixir-school,doomspork/elixir_school,doomspork/elixir-school,doomspork/elixir_school,doomspork/elixir-school,doomspork/elixir-school