add order list in Content.java

Signed-off-by: Mitchell Gale <[email protected]>

opensearch/src/main/java/org/opensearch/sql/opensearch/data/utils/Content.java

@@ -10,12 +10,13 @@
 import org.apache.commons.lang3.tuple.Pair;
 
 /**
- * <pre>
+ *
  * Regardless the underling data format, the {@link Content} define the data in abstract manner.
  * which could be parsed by ElasticsearchExprValueFactory. There are two major use cases:
- * 1. Represent the JSON data retrieve from OpenSearch search response.
- * 2. Represent the Object data extract from the OpenSearch aggregation response.
- * </pre>
+ * <ol>
+ * <li>Represent the JSON data retrieve from OpenSearch search response.</li>
+ * <li>Represent the Object data extract from the OpenSearch aggregation response.</li>
+ * </ol>
  */
 public interface Content {