add notice about nodejs execution (#124)

Signed-off-by: Xu Jun <[email protected]>

tools/validate/run_module_on_node/run_module_on_node.md

@@ -2,6 +2,10 @@
 
 This document describes how to execute WASM module on Node.js.
 
+> Note: Wasmnizer-ts follows the latest WasmGC spec, which requires `V8 v11.9+`, but the latest nodejs (v21.5.0) is using `V8 11.8.172.17`, so currently the generated WASM module can't execute on any nodejs releases.
+
+> If you do want to try on nodejs, you can reset to commit `94cf9929421d47a9976fa6edf74b25ef2a00ee12` to build the compiler, which is compatible to older V8 versions.
+
 ## Prerequisites
    - node.js version 20.0.0 or higher