az-apim: add page (#10915)

* az-apim: add page

* Update pages/common/az-apim.md

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/common/az-apim.md

@@ -0,0 +1,25 @@
+# az apim
+
+> Manage Azure API Management services.
+> Part of `az`.
+> More information: <https://docs.microsoft.com/cli/azure/apim>.
+
+- List API Management services within a resource group:
+
+`az apim list --resource-group {{resource_group}}`
+
+- Create an API Management service instance:
+
+`az apim create --name {{name}} --resource-group {{resource_group}} --publisher-email {{email}} --publisher-name {{name}}`
+
+- Delete an API Management service:
+
+`az apim delete --name {{name}} --resource-group {{resource_group}}`
+
+- Show details of an API Management service instance:
+
+`az apim show --name {{name}} --resource-group {{resource_group}}`
+
+- Update an API Management service instance:
+
+`az apim update --name {{name}} --resource-group {{resource_group}}`