title: How to have nested avro schema for confluent schema registry?
body: <p>I tried different things with the following web ui
  <a href="https://schema-registry-ui.landoop.com" rel="nofollow noreferrer">https://schema-registry-ui.landoop.com</a></p>
  
  <p>I couldn't seem to put the following into the registry:</p>
  
  <pre><code>{
      "namespace": "test.avro",
      "type": "record",
      "name": "test",
      "fields": [
          {
              "name": "field1", 
              "type": "string" 
          },
          {
              "name": "field2",  
              "type": "record", 
              "fields":[
                  {"name": "field1", "type": "string" },
                  {"name": "field2",  "type": "string"},
                  {"name": "intField", "type": "int"}
              ]
          }
      ]
  }
  </code></pre>
  
  <p>Also, is there a way to refer to another schema from inside the current one to create a compound/nested schema?</p>