Update package.json (#317)

Author: fareed069417

package.json

@@ -4,7 +4,7 @@
 	"version": "2.6.2",
 	"license": "MIT",
 	"author": "Jamie Perkins",
-	"main": "./dist/countUp.min.js",
+	"main": "./dist/countUp.umd.js",
 	"module": "./dist/countUp.min.js",
 	"types": "./dist/countUp.d.ts",
 	"repository": {