workding changes

docs/Troubleshooting Guide.md

@@ -44,4 +44,4 @@ docker login <yourregistry>.azurecr.io
 
 # How to use a custom domain for azure container registry
 
-Azure docker registries has a typical ID of the format `*.azurecr.io`. A customer might like to have a custom registry ID that associate with its own organization. Follow [this guide](custom-domain.md) to achieve that.
+Azure docker registries has a typical ID of the format `*.azurecr.io`. A customer might like to have a custom domain that associate with its own organization. Follow [this guide](custom-domain.md) to achieve that.

docs/custom-domain.md

@@ -1,6 +1,6 @@
 # How to use a custom domain for azure container registry
 
-Azure docker registries has a typical domain of the format `*.azurecr.io`. A customer might like to have a custom registry domain that associate with its own organization. The following is the guide on how to achieve that.
+Azure docker registries has a typical domain of the format `*.azurecr.io`. A customer might like to have a custom domain that associate with its own organization. The following is the guide on how to achieve that.
 
 ## Prerequisites