Create servicebusqueues.md (#16)

concepts/bindings/specs/servicebusqueues.md

@@ -0,0 +1,18 @@
+# Azure Service Bus Queues Binding Spec
+
+```
+apiVersion: actions.io/v1alpha1
+kind: Component
+metadata:
+  name: <name>
+spec:
+  type: bindings.azure.servicebusqueues
+  metadata:
+  - name: connectionString
+    value: sb://************
+  - name: queueName
+    value: queue1
+```
+
+`connectionString` is the Service Bus connection string.
+`queueName` is the Service Bus queue name.