[zh-hans] Update basic modules.md to 1.4.2
[zh-hans] Update basic modules.md to 1.4.2

fix repeat typo
doomspork/elixir_school,doomspork/elixir-school,doomspork/elixir_school,doomspork/elixir-school,doomspork/elixir-school,doomspork/elixir_school