Docs: only mention Bootstrap 6 and 5 in footer

Author: julien-deramond

site/src/components/footer/Footer.astro

@@ -57,10 +57,10 @@ import { getVersionedDocsPath } from '@libs/path'
         <h5>Projects</h5>
         <ul class="list-unstyled">
           <li class="mb-2">
-            <a href={`${getConfig().github_org}/bootstrap`} target="_blank" rel="noopener">Bootstrap 5</a>
+            <a href={`${getConfig().github_org}/bootstrap`} target="_blank" rel="noopener">Bootstrap 6</a>
           </li>
           <li class="mb-2">
-            <a href={`${getConfig().github_org}/bootstrap/tree/v4-dev`} target="_blank" rel="noopener">Bootstrap 4</a>
+            <a href={`${getConfig().github_org}/bootstrap/tree/v5-dev`} target="_blank" rel="noopener">Bootstrap 5</a>
           </li>
           <li class="mb-2"><a href={`${getConfig().github_org}/icons`} target="_blank" rel="noopener">Icons</a></li>
           <li class="mb-2">