docs(node): add warning for node 16 requirement due to cpSync

resolves #1

Author: tobua

README.md

@@ -11,6 +11,8 @@ Starting point for creating React Native plugins in TypeScript without native co
 
 ## Usage
 
+> :warning: **node**: Requires at least node version 16.
+
 ```
 npm init -y react-native-plugin react-native-my-plugin
 # or

package.json

@@ -25,7 +25,7 @@
     "template"
   ],
   "devDependencies": {
-    "padua": "^0.5.6"
+    "padua": "^0.6.1"
   },
   "prettier": "padua/configuration/.prettierrc.json",
   "eslintConfig": {