add help link for searching

src/app/vault/groupings.component.html

@@ -1,6 +1,9 @@
 <div class="card vault-filters">
-    <div class="card-header">
+    <div class="card-header d-flex">
         {{'filters' | i18n}}
+        <a class="ml-auto" href="https://help.bitwarden.com/article/searching-vault/" target="_blank" rel="noopener" title="{{'learnMore' | i18n}}">
+            <i class="fa fa-question-circle-o"></i>
+        </a>
     </div>
     <div class="card-body">
         <input type="search" placeholder="{{searchPlaceholder || ('searchVault' | i18n)}}" id="search" class="form-control"

src/scss/styles.scss

@@ -429,7 +429,7 @@ app-vault-groupings, app-org-vault-groupings {
             margin-bottom: 0;
         }
 
-        a {
+        .card-body a {
             color: $body-color;
 
             &:hover {