customized color badge example in README

README.md

@@ -26,6 +26,9 @@ A badge generator service to count visitors of your markdown file.
 
 [The story of visitor badge](https://dev.to/jwenjian/the-story-of-visitor-badge-46mm)
 
-![visitor badge](https://visitor-badge.glitch.me/badge?page_id=jwenjian.visitor-badge)
+![visitor badge](https://visitor-badge.glitch.me/badge?page_id=jwenjian.visitor-badge) (default style)
+
+![visitor badge](https://visitor-badge.glitch.me/badge?page_id=jwenjian.visitor-badge&left_color=red&right_color=green) (left_color=red, right_color=green)
+
 
 <a href="https://www.producthunt.com/posts/visitor-count-badge-for-your-github-repo?utm_source=badge-featured&utm_medium=badge&utm_souce=badge-visitor-count-badge-for-your-github-repo" target="_blank"><img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=195146&theme=dark" alt="Visitor count badge for your Github Repo - A github badge to count visitor to your repository | Product Hunt Embed" style="width: 250px; height: 54px;" width="250px" height="54px" /></a>