Add schedules for testing onos-2.1

Change-Id: I7c8534c3009806e66e2d1f556e8e48084b0e1544
diff --git a/TestON/JenkinsFile/README b/TestON/JenkinsFile/README
index 73c9749..54bb6aa 100644
--- a/TestON/JenkinsFile/README
+++ b/TestON/JenkinsFile/README
@@ -12,7 +12,7 @@
   2) change the portion on line 31 :
      current_version = "master"
      previous_version = "1.15"
-     before_previous_version = "2.0"
+     before_previous_version = "2.1"
 
 
 2. If you want to change the branch to be run for the Segment Routing tests :
@@ -21,13 +21,13 @@
   2) change the variable values on line 32:
      current_version = "master"
      previous_version = "1.15"
-     before_previous_version = "2.0"
+     before_previous_version = "2.1"
   3) If you want certain branch to be run on different machine then change
      a) line 155 - 157:
         testcases[ "SR" ][ "nodeName" ][ <node you want> ] 0: Fabric2, 1: Fabric3, 2: Fabric4
      b) Then, go to dependencies/JenkinsCommonFuncs.groovy
         change def fabricOn( branch ) on line 86.
-        Currently, master, 2.0 and 1.15 run on Fabric4, 3 and 2 respectively.
+        Currently, master, 2.1 and 1.15 run on Fabric4, 3 and 2 respectively.
      c) Make sure to change the URLs on Wiki as well. If 1.15 runs on Fabric2 instead of Fabric3, then you
         have to update the URL from
           https://jenkins.onosproject.org/view/QA/job/postjob-Fabric3/lastSuccessfulBuild/artifact/SRBridging_onos-1.15_20-builds_graph.jpg