docs: Fix badges after #28458. (#29199)

site/content/docs/4.3/examples/checkout/index.html

@@ -19,7 +19,7 @@ body_class: "bg-light"
     <div class="col-md-4 order-md-2 mb-4">
       <h4 class="d-flex justify-content-between align-items-center mb-3">
         <span class="text-muted">Your cart</span>
-        <span class="badge badge-secondary badge-pill">3</span>
+        <span class="badge bg-secondary rounded-pill">3</span>
       </h4>
       <ul class="list-group mb-3">
         <li class="list-group-item d-flex justify-content-between lh-condensed">

site/content/docs/4.3/examples/offcanvas/index.html

@@ -49,7 +49,7 @@ body_class: "bg-light"
     <a class="nav-link active" href="#">Dashboard</a>
     <a class="nav-link" href="#">
       Friends
-      <span class="badge badge-pill bg-light align-text-bottom">27</span>
+      <span class="badge bg-light rounded-pill align-text-bottom">27</span>
     </a>
     <a class="nav-link" href="#">Explore</a>
     <a class="nav-link" href="#">Suggestions</a>