Improve ES-Node compatibility with exports (#37)

Author: fregante

package.json

@@ -13,6 +13,10 @@
 	"repository": "fregante/github-url-detection",
 	"license": "MIT",
 	"author": "Federico Brigante <opensource@bfred.it> (bfred.it)",
+	"exports": {
+		"import": "./esm/index.js",
+		"require": "./index.js"
+	},
 	"main": "cjs/index.js",
 	"module": "esm/index.js",
 	"files": [