docs: fix hugo hint shortcode

Author: xoxys

_docs/_index.md

@@ -42,10 +42,8 @@ docker build --file docker/Dockerfile.amd64 --tag thegeeklab/drone-docker-buildx
 
 ## Usage
 
-{{< hint warning >}}
-**Note**\
-Be aware that the this plugin requires privileged capabilities, otherwise the
-integrated Docker daemon is not able to start.
+{{< hint type=important >}}
+Be aware that the this plugin requires privileged capabilities, otherwise the integrated Docker daemon is not able to start.
 {{< /hint >}}
 
 ```Shell