Fix link in next steps

Author: CaitlinV39

articles/healthcare-apis/fhir-paas-arm-template-quickstart.md

@@ -229,4 +229,4 @@ In this quickstart guide, you've deployed the Azure API for FHIR into your subsc
 >[Additional settings in Azure API for FHIR](azure-api-for-fhir-additional-settings.md)
 
 >[!div class="nextstepaction"]
->[Register Applications Overview](fhir-app-registrations.md)
+>[Register Applications Overview](fhir-app-registration.md)

articles/healthcare-apis/fhir-paas-cli-quickstart.md

@@ -69,4 +69,4 @@ In this quickstart guide, you've deployed the Azure API for FHIR into your subsc
 >[Additional settings in Azure API for FHIR](azure-api-for-fhir-additional-settings.md)
 
 >[!div class="nextstepaction"]
->[Register Applications Overview](fhir-app-registrations.md)
+>[Register Applications Overview](fhir-app-registration.md)

articles/healthcare-apis/fhir-paas-portal-quickstart.md

@@ -68,4 +68,4 @@ In this quickstart guide, you've deployed the Azure API for FHIR into your subsc
 >[Additional settings in Azure API for FHIR](azure-api-for-fhir-additional-settings.md)
 
 >[!div class="nextstepaction"]
->[Register Applications Overview](fhir-app-registrations.md)
+>[Register Applications Overview](fhir-app-registration.md)

articles/healthcare-apis/fhir-paas-powershell-quickstart.md

@@ -69,4 +69,4 @@ In this quickstart guide, you've deployed the Azure API for FHIR into your subsc
 >[Additional settings in Azure API for FHIR](azure-api-for-fhir-additional-settings.md)
 
 >[!div class="nextstepaction"]
->[Register Applications Overview](fhir-app-registrations.md)
+>[Register Applications Overview](fhir-app-registration.md)