message: doc(example) Fix a missing link.
diff: @@ -378,6 +378,7 @@ example.
  [wasi-pipes]: ./wasi_pipes.rs
  [table]: ./table.rs
  [memory]: ./memory.rs
  +[errors]: ./errors.rs
  [`wasmer-compiler-singlepass`]: https://github.com/wasmerio/wasmer/tree/master/lib/compiler-singlepass
  [`wasmer-compiler-cranelift`]: https://github.com/wasmerio/wasmer/tree/master/lib/compiler-cranelift
  [`wasmer-compiler-llvm`]: https://github.com/wasmerio/wasmer/tree/master/lib/compiler-llvm
  