docs: Fix doxygen links in release notes and displayed version

Change-Id: Ic1ee22e2607f5ab11c38a9adcaabc27a602c65ae
Refs: #3252
diff --git a/docs/RELEASE_NOTES.rst b/docs/RELEASE_NOTES.rst
index 0618e7b..3a9709d 100644
--- a/docs/RELEASE_NOTES.rst
+++ b/docs/RELEASE_NOTES.rst
@@ -1,4 +1,4 @@
 NFD Release Notes
 =================
 
-.. include:: release-notes/release-notes-0.4.0.rst
+.. include:: release-notes-latest.rst