docs(readme): npm stats

Author: yorickshan

README.md

@@ -1,5 +1,7 @@
 # html2canvas-pro
 
+[![npm version](https://badgen.net/npm/v/html2canvas-pro)](https://npm.im/html2canvas-pro) [![npm downloads](https://badgen.net/npm/dm/html2canvas-pro)](https://npm.im/html2canvas-pro)
+
 > A fork of [niklasvh/html2canvas](https://github.com/niklasvh/html2canvas) with some new features. If you found this helpful, don't forget to leave a star.
 
 ## 🌟 Why html2canvas-pro?