Update README.md (#59)

--name and ``` are duplicated.

README.md

@@ -612,7 +612,6 @@ Create an Azure Active Directory application:
 AZURE_CLIENT_ID=$(az ad app create --display-name github-petclinic-actions --query appId --output tsv)
 GITHUB_OBJECTID=$(az ad app show --id $AZURE_CLIENT_ID --query id --output tsv)
 ```
-```
 
 Create a service principal for the application:
 
@@ -688,7 +687,7 @@ Enable System Assigned Identities for applications and export identities to envi
  az spring app identity assign --name ${VETS_SERVICE}
  export VETS_SERVICE_IDENTITY=$(az spring app show --name ${VETS_SERVICE} --query 'identity.principalId' --output tsv)
 
- az spring app identity assign --name --name ${VISITS_SERVICE}
+ az spring app identity assign --name ${VISITS_SERVICE}
  export VISITS_SERVICE_IDENTITY=$(az spring app show --name ${VISITS_SERVICE} --query 'identity.principalId' --output tsv)
 ```