Publish node-addon-api wrapper for sherpa-onnx as npm packages (#829)

.github/scripts/node-addon/notes.md

@@ -0,0 +1,8 @@
+# Introduction
+
+See also
+
+  - https://github.com/WonderInventions/node-webrtc/blob/develop/package.json
+  - https://stackoverflow.com/questions/15176082/npm-package-json-os-specific-dependency
+  - https://github.com/WonderInventions/node-webrtc/blob/develop/lib/binding.js
+  - cross-compiling https://github.com/nodejs/node-gyp/issues/829#issuecomment-665527032