webrtc_sendrecv.py: Add missing copyright headers

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1864>

diff --git a/subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py b/subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py
index 1502eec..81f84d3 100755 (executable)
--- a/subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py
+++ b/subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py
@@ -1,4 +1,10 @@
 #!/usr/bin/env python3
+#
+# Copyright (C) 2018 Matthew Waters <matthew@centricular.com>
+#               2022 Nirbheek Chauhan <nirbheek@centricular.com>
+#
+# Demo gstreamer app for negotiating and streaming a sendrecv webrtc stream
+# with a browser JS app, implemented in Python.
 
 import random
 import ssl