Updating Mcast json examples

Change-Id: I15ffb139b87510491813b1fa38b2b0a86c9729f6
diff --git a/apps/mcast/web/src/main/resources/jsonExamples/mcastSourcesHostId.json b/apps/mcast/web/src/main/resources/jsonExamples/mcastSourcesHostId.json
new file mode 100644
index 0000000..d4a0680
--- /dev/null
+++ b/apps/mcast/web/src/main/resources/jsonExamples/mcastSourcesHostId.json
@@ -0,0 +1,5 @@
+{
+  "sources": [
+    "of:0000000000000210/8"
+  ]
+}
\ No newline at end of file