diff --git a/ppl-spark-integration/README.md b/ppl-spark-integration/README.md
index 7e44b39e4..ecd043acd 100644
--- a/ppl-spark-integration/README.md
+++ b/ppl-spark-integration/README.md
@@ -251,20 +251,22 @@ The next samples of PPL queries are currently supported:
 - `source = table  | stats sum(age) by span(age, 5) as age_span | head 2`
 - `source = table  | stats avg(age) by span(age, 20) as age_span, country  | sort - age_span |  head 2`
 
-**Aggregations With TimeWindow Span (tumble windowing function) **
+**Aggregations With TimeWindow Span (tumble windowing function)**
 - `source = table | stats sum(productsAmount) by span(transactionDate, 1d) as age_date | sort age_date`
 - `source = table | stats sum(productsAmount) by span(transactionDate, 1w) as age_date, productId`
 
+> For additional details, review [FlintSparkPPLTimeWindowITSuite.scala](../integ-test/src/test/scala/org/opensearch/flint/spark/ppl/FlintSparkPPLTimeWindowITSuite.scala)
+
 #### Supported Commands:
  - `search` - [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/search.rst)  
  - `where`  - [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/where.rst)  
  - `fields` - [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/fields.rst)  
  - `head`   - [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/head.rst)
- - `stats`  - [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/stats.rst)
- - `sort` -   [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/sort.rst) 
+ - `stats`  - [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/stats.rst) (supports AVG, COUNT, MAX, MIN and SUM aggregation functions)
+ - `sort` -   [See details](https://github.com/opensearch-project/sql/blob/main/docs/user/ppl/cmd/sort.rst)
+ - `correlation` - [See details](../docs/PPL-Correlation-command.md)
 
-> For additional details review the next [Integration Test ](../integ-test/src/test/scala/org/opensearch/flint/spark/FlintSparkPPLITSuite.scala)
-> For additional details review the next [Integration Time Window Test ](../integ-test/src/test/scala/org/opensearch/flint/spark/FlintSparkPPLTimeWindowITSuite.scala)
+> For additional details, review [Integration Tests](../integ-test/src/test/scala/org/opensearch/flint/spark/)
  
 ---