Update azure-pipelines.yml for Azure Pipelines

Author: Ashahet1

azure-pipelines.yml

@@ -17,3 +17,10 @@ steps:
     echo Add other tasks to build, test, and deploy your project.
     echo See https://aka.ms/yaml
   displayName: 'Run a multi-line script'
+
+- task: CmdLine@2
+  inputs:
+    script: |
+      echo Write your commands here
+        
+      echo Hello world