update version to v1.14.1

Author: oilbeater

mkdocs.yml

@@ -288,7 +288,7 @@ extra:
     - icon: fontawesome/brands/docker
       link: https://hub.docker.com/r/kubeovn/kube-ovn
   variables:
-    version: v1.15.0
+    version: v1.14.1
     branch: release-1.14
 copyright:
   <p>The Linux Foundation has registered trademarks and uses trademarks. For a list of trademarks of The Linux Foundation,