add H2 heading

Author: GitHubber17

articles/stream-analytics/stream-analytics-test-query.md

@@ -15,6 +15,8 @@ ms.custom: seodec18
 
 By using Azure Stream Analytics, you can sample data from inputs or upload sample data to test queries in the Azure portal without starting or stopping a job.
 
+## Upload sample data and test the query
+
 1. Sign in to the Azure portal. 
 
 2. Locate your existing Stream Analytics job and select it.
@@ -23,9 +25,9 @@ By using Azure Stream Analytics, you can sample data from inputs or upload sampl
 
 4. To test your query you can then either sample data from a live input, or upload from a file. The data must be serialized in JSON, CSV or AVRO. Sample input must be encoded in UTF-8 and not compressed. Only comma (,) delimiter is supported for testing CSV input on portal.
 
-    4.1. Using live input: right-click on any of your inputs. Then select **Sample data from input**. In the next screen, you can set the duration of the sample.
+    1. Using live input: right-click on any of your inputs. Then select **Sample data from input**. In the next screen, you can set the duration of the sample.
 
-    4.2. Using file: right-click on any of your inputs. Then select **Upload sample data from file**. 
+    1. Using file: right-click on any of your inputs. Then select **Upload sample data from file**. 
 
     ![stream analytics query editor test query](media/stream-analytics-test-query/stream-analytics-test-query-editor-upload.png)