chore: add repobeats

Add Repobeats analytics image to README

Author: C4illin

README.md

@@ -147,6 +147,8 @@ Use [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/#summar
   <img src="https://contrib.rocks/image?repo=C4illin/ConvertX" alt="Image with all contributors"/>
 </a>
 
+![Alt](https://repobeats.axiom.co/api/embed/dcdabd0564fcdcccbf5680c1bdc2efad54a3d4d9.svg "Repobeats analytics image")
+
 ## Star History
 
 <a href="https://github.com/C4illin/ConvertX/stargazers">