Adding ONOS Segment Routing CLI files to new repo
diff --git a/cli/documentation/en_US/vns/tenant-router-gwpool b/cli/documentation/en_US/vns/tenant-router-gwpool
new file mode 100755
index 0000000..9f07d6b
--- /dev/null
+++ b/cli/documentation/en_US/vns/tenant-router-gwpool
@@ -0,0 +1,2 @@
+This command is used to create a new next hop gateway pool. Any IP address within this gateway pool can be used as a next hop for a routing rule configured with the next hop as this gateway pool.
+