added version icon

modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml

@@ -79,8 +79,9 @@
                             <div class="version-select">
                                 <div class="input-group">
                                     <div class="input-group-prepend">
-                                        <label class="input-group-text"><i class="fa fa-folder-open" aria-hidden="true"  data-toggle="tooltip" title="@L["Project"]"></i>
-                                             </label>
+                                        <label class="input-group-text">
+                                            <i class="fa fa-folder-open" aria-hidden="true" data-toggle="tooltip" title="@L["Project"]"></i>
+                                        </label>
                                     </div>
 
                                     <select asp-items="Model.ProjectSelectItems" class="form-control" onchange="window.location.replace(this.value)"></select>
@@ -95,7 +96,9 @@
                             <div class="version-select">
                                 <div class="input-group">
                                     <div class="input-group-prepend">
-                                        <label class="input-group-text">@L["Version"]</label>
+                                        <label class="input-group-text">
+                                            <i class="fa fa-check-square-o" aria-hidden="true" data-toggle="tooltip" title="@L["Version"]"></i>
+                                        </label>
                                     </div>
 
                                     <select asp-items="Model.VersionSelectItems" class="form-control" onchange="if (this.value) { window.location.replace(this.value) }"></select>