update conf file, add id for ingest.

@@ -93,7 +93,9 @@ vhost __defaultVhost__ {
 # vhost for ingest
 vhost ingest.srs.com {
     # ingest file/stream/device then push to SRS over RTMP.
-    ingest {
+    # the name/id used to identify the ingest, must be unique in this vhost.
+    # ingest id is used in reload or http api management.
+    ingest livestream {
         # whether enable ingest features
         # default: off
         enable      on;

@@ -4,7 +4,7 @@
 
 listen              1935;
 vhost __defaultVhost__ {
-    ingest {
+    ingest livestream {
         enable      on;
         input {
             type    file;