Add JS Search Extension showcase

content/showcases.md

@@ -11,7 +11,7 @@ If you use **Juice** as your theme, feel free to make Pull request.
 Here are some steps to help you get started:
  
 - Change the [content/showcases.md](https://github.com/huhu/juice/blob/master/content/showcases.md) file, add your product site. Make sure the lexicographical order.
-- Add your screenshots to [static/showcases](https://github.com/huhu/juice/tree/master/static/showcases) directory, then link the screenshot in the markdown file.
+- Add your screenshots to [content](https://github.com/huhu/juice/tree/master/static/showcases) directory, then link the screenshot in the markdown file.
 - Add a link to your product site.
 
 # Gallery
@@ -31,6 +31,12 @@ Link: [https://cpp.extension.sh/](https://cpp.extension.sh/)
 
 Link: [https://go.extension.sh/](https://go.extension.sh/)
 
+## JS Search Extension
+
+![](/js-search-extension.png)
+
+Link: [https://js.extension.sh/](https://js.extension.sh/)
+
 ## Rust Search Extension
 
 ![](/rust-search-extension.png)