Revert "Link to the Sourcemeta standard library"

This reverts commit b345d27.

Author: jviotti

layouts/partials/navigation.html

@@ -14,9 +14,9 @@
       <ul id="search-result-list" class="dropdown-menu w-100 position-absolute" style="top: 100%;"></ul>
     </div>
     <div class="navbar-nav">
-      <a class="btn btn-sm btn-light-dark me-2" target="_blank" href="https://www.sourcemeta.com/products/std" aria-label="Explore our Schema Registry">
-        <i class="align-middle bi bi-collection fs-6"></i>
-        <small class="align-middle ms-1">Get the Schema Standard Library</small>
+      <a class="btn btn-sm btn-light-dark me-2" target="_blank" href="https://schemas.sourcemeta.com" aria-label="Explore our Schema Registry">
+        <i class="align-middle bi bi-globe fs-6"></i>
+        <small class="align-middle ms-1">Explore Public Schemas</small>
       </a>
 
       <a class="btn btn-sm btn-light-dark me-2 d-none d-md-block" target="_blank" href="https://github.com/sourcemeta/jsonschema" aria-label="Get the JSON Schema CLI">