Update apirequests.adoc

docs/apirequests.adoc

-
 == Requests documentation for YORCA integration
 
 This document provides a list and structure of request to start a data transfer with DLS. The minimal workflow currently defined in the project assumes that
@@ -39,5 +38,10 @@ curl -X POST -u USER:PASS -H "Content-Type: application/json" \
    $DLS/dags/taskflow_example/dagRuns
 ----
 
+=== Checking status ===
+----
+curl -X GET -u USER:PASS -H "Content-Type: application/json" $DLS/dags/taskflow_example/dagRuns
+----
+
 === Comments ===
 I could image that a name of DLS pipeline (+taskflow_example+) can change and needs to be passed as parameter to YORC.