add readme for azure sql demo

Author: frodopwns

azure-votes-sql/README.md

@@ -0,0 +1,49 @@
+# Azure SQL Votes Demo App
+
+## Build the Docker Image
+
+```
+docker build -t your_registry.com/your_org_or_user/sqldemo:1
+docker push your_registry.com/your_org_or_user/sqldemo:1
+```
+
+## Deploy Demo App
+
+```
+helm upgrade --install sqldemo charts/azure-sql-demo \
+    --set resourceGroupName=some_resource_group \
+    --set serverName=some_name \
+    --set databaseName=some_name \
+    --set region=westus \
+    --set image=your_registry.com/your_org_or_user/sqldemo:1 \
+    --set local=true
+```
+
+From here you can look at the resources to see when they are done:
+
+```
+kubectl get azuresqlfirewallrule
+NAME                    PROVISIONED   MESSAGE
+saso-sql-fwrule         true          successfully provisioned
+saso-sql-fwrule-local   true          successfully provisioned
+```
+
+This should only take around 3 minutes to be done.
+
+Now run `kubectl get pods`. You should see the demo deployment in a running state.
+
+```
+kubectl get pods
+NAME                               READY   STATUS    RESTARTS   AGE
+azure-votes-sql-86d66c555b-sjnt2   1/1     Running   4          17m
+```
+
+From here you can port-forward to the app and check it out:
+
+```
+kubectl port-forward deployment/azure-votes-sql 8080:8080
+```
+
+Then visit `http://localhost:8080` in your browser to test.
+
+![image of app](./app.png)