moving private registry proxy to beta

Author: grantmiller

docs/vendor/using-third-party-registry-proxy.mdx

@@ -1,4 +1,4 @@
-# Using a Registry Proxy for Helm Air Gap Installations (Alpha)
+# Using a Registry Proxy for Helm Air Gap Installations (Beta)
 
 This topic describes how to connect the Replicated proxy registry to a Harbor or jFrog Artifactory instance to support pull-through image caching. It also includes information about how to set up replication rules in Harbor for image mirroring.
 
@@ -69,4 +69,4 @@ To configure image mirroring in Harbor:
 
 [jFrog Artifactory](https://jfrog.com/help/r/jfrog-artifactory-documentation) supports pull-through caching for Docker registries.
 
-For information about how to configure a pull-through cache with Artifactory, see [Remote Repository](https://jfrog.com/help/r/jfrog-artifactory-documentation/configure-a-remote-repository) in the Artifactory documentation.
+For information about how to configure a pull-through cache with Artifactory, see [Remote Repository](https://jfrog.com/help/r/jfrog-artifactory-documentation/configure-a-remote-repository) in the Artifactory documentation.