message: doc(example) Fix missing links and fix execution example.
diff: @@ -70,13 +70,13 @@ example.
  3. [**Handling errors**][errors], explains the basics of interacting with
  Wasm module memory.
  - _Keywords_: memory, module.
  + _Keywords_: instance, error.
  <details>
  <summary><em>Execute the example</em></summary>
  ```shell
  - $ cargo run --example memory --release --features "cranelift"
  + $ cargo run --example errors --release --features "cranelift"
  ```
  </details>
  @@ -204,7 +204,7 @@ example.
  ### Tunables
  -1. **Limit memory**, explains how to use Tunables to limit the
  +1. [**Limit memory**][tunables-limit-memory], explains how to use Tunables to limit the
  size of an exported Wasm memory
  _Keywords_: basic, tunables, memory
  @@ -379,6 +379,7 @@ example.
  [table]: ./table.rs
  [memory]: ./memory.rs
  [errors]: ./errors.rs
  +[tunables-limit-memory]: ./tunables_limit_memory.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
  