Add note for some functions and fix document error
Change-Id: Ide2500c393d2a135f343263dd8c3e3f0e644efe0
diff --git a/index.rst b/index.rst
index da381f9..06c2fc4 100644
--- a/index.rst
+++ b/index.rst
@@ -108,8 +108,8 @@
- `Trellis Developer Mailing List
<https://groups.google.com/a/opennetworking.org/forum/#!forum/trellis-dev>`_
- - \#trellis channel in `ONOS Slack <https://onosproject.slack.com>`_
- (`register <https://slackin.onosproject.org/>`_)
+ - \#trellis channel in `ONF Community Slack <https://onf-community.slack.com>`_
+ (`register <https://onf-community.slack.com/join/shared_invite/zt-g2ed9rid-t9mAGa4Y2RrKfBWbY665tA>`_)
.. toctree::
:maxdepth: 1