Update public/index.html

public/index.html

@@ -602,7 +602,7 @@ Implementations, and Perspectives
         </div>
 
         <!-- GitLab Repository: ASYST Plugin -->
-         <div class="col-lg-4 col-md-6 portfolio-item isotope-item filter-repob">
+         <div class="col-lg-4 col-md-6 portfolio-item isotope-item filter-repo">
           <a href="https://transfer.hft-stuttgart.de/gitlab/ulrike.pado/asyst-moodle-plugin" class="custom-card-link">
             <div class="custom-card-horizontal">
               <img src="ausschreibung/img/gitlab.PNG" alt="ASYST Plugin">