docs: add readme

Author: bassochette

README.md

@@ -0,0 +1,16 @@
+A simple `parseArgs` example from node 18.3.0
+
+
+## usage
+
+long version
+
+```shell
+node . --say=foo
+```
+
+short version
+
+```shell
+node . -s foo
+```