Add v2 changelog entry to point to migrating page

docs/whats_new.rst

@@ -11,6 +11,14 @@ Changelog
 This page keeps a detailed human friendly rendering of what's new and changed
 in specific versions.
 
+.. _vp2p0p0:
+
+v2.0.0
+--------
+
+The changeset for this version are too big to be listed here, for more information please
+see :ref:`the migrating page <migrating_2_0>`.
+
 .. _vp1p7p3:
 
 v1.7.3
@@ -1184,4 +1192,4 @@ Bug Fixes
 - Mentions are now triggered normally. This was changed due to the way discord handles it internally.
 - Fix issue when a :class:`Message` would attempt to upgrade a :attr:`Message.server` when the channel is
   a :class:`Object`.
-- Unavailable servers were not being added into cache, this has been corrected.
+- Unavailable servers were not being added into cache, this has been corrected.