Install page fix

Author: szarnyasg

_includes/installation.html

@@ -462,7 +462,7 @@ <h4>Gradle</h4>
 </div>
 {%- endif -%}
 
-<div class="current"
+<div class="lts"
     data-environment="go"
     data-docs="{% link docs/stable/clients/go.md %}">