message: fix the wrong link
diff: @@ -121,7 +121,7 @@ example.
  ### AOT (Ahead-of-time) compilation for CPU with `tfcompile`
  -You can also use a standalone [`tfcompile`](./tfcompile) tool,
  +You can also use a standalone [`tfcompile`](./tfcompile.md) tool,
  which converts TensorFlow graph into executable code (for x86-64 CPU only).
  ## Inspect compiled programs
  