Merge branch 'hotfix/versions'

Author: wenzhixin

site/_data/versions.yml

@@ -0,0 +1,6 @@
+- 1.20.2
+- 1.19.1
+- 1.18.3
+- 1.17.1
+- 1.16.0
+- 1.15.5

site/_includes/docs-navbar.html

@@ -55,11 +55,9 @@
       </a>
       <div class="dropdown-menu dropdown-menu-md-right" aria-labelledby="bd-versions">
         <a class="dropdown-item active" href="/">Latest ({{ site.current_version }})</a>
-        <a class="dropdown-item" href="http://bootstrap-table.com/versions/1.19.1/" target="_blank">v1.19.1</a>
-        <a class="dropdown-item" href="http://bootstrap-table.com/versions/1.18.3/" target="_blank">v1.18.3</a>
-        <a class="dropdown-item" href="http://bootstrap-table.com/versions/1.17.1/" target="_blank">v1.17.1</a>
-        <a class="dropdown-item" href="http://bootstrap-table.com/versions/1.16.0/" target="_blank">v1.16.0</a>
-        <a class="dropdown-item" href="http://bootstrap-table.com/versions/1.15.5/" target="_blank">v1.15.5</a>
+        {% for version in site.data.versions %}
+        <a class="dropdown-item" href="http://bootstrap-table.com/versions/{{ version }}/" target="_blank">v{{ version }}</a>
+        {% endfor %}
       </div>
     </li>
     <li class="nav-item">