feat: Remove two old-style call-outs (#1076)

Author: ADubhlaoich

content/nim/admin-guide/authentication/basic-auth/set-up-basic-authentication.md

@@ -58,9 +58,9 @@ To add users, take the following steps:
 
 ## Set user passwords {#set-basic-passwords}
 
-{{< before-you-begin >}}
+{{< call-out "note" >}}
 Before you can set users' passwords, ensure you have [created users](#create-users) in NGINX Instance Manager. Once you've created the users, you can use one of the following options to set their passwords.
-{{< /before-you-begin >}}
+{{< /call-out >}}
 
 ### (Recommended) Use the provided script {#set-basic-passwords-script}
 

content/nms/acm/how-to/devportals/installation/devportal-helm-chart.md

@@ -281,7 +281,9 @@ Create a Dockerfile similar to the following example:
 
 ## Push Images to Private Registry {#push-images-private-registry}
 
-{{<before-you-begin>}}To complete this step, you need an [externally-accessible private Docker registry](https://docs.docker.com/registry/deploying/) to push the container images to.{{</before-you-begin>}}
+{{< call-out "note" >}}
+To complete this step, you need an [externally-accessible private Docker registry](https://docs.docker.com/registry/deploying/) to push the container images to.
+{{< / call-out >}}
 
 After building or loading the Docker images, you can now tag and push the images to your private Docker registry. Replace `<my-docker-registry>` in the examples below with the path to your private Docker registry.