feat(unixode.sty): add entries for {| and |}
feat(unixode.sty): add entries for {| and |}

fix #24

leanprover/tutorial,fpvandoorn/tutorial,Hodapp87/cs6460_project,fpvandoorn/tutorial,fpvandoorn/tutorial,soonhokong/lean-tutorial,leanprover/tutorial,cjmazey/fork_leanprover_tutorial,soonhokong/lean-tutorial,leanprover/tutorial,avigad/tutorial,avigad/tutorial,avigad/tutorial,Hodapp87/cs6460_project,Hodapp87/cs6460_project,cjmazey/fork_leanprover_tutorial,cjmazey/fork_leanprover_tutorial,soonhokong/lean-tutorial