Minor README improvements; fix outdated URLs

Change-Id: Ia57f83892471ad85a2301ba4c8ab3df144581000
diff --git a/manpages/conf.py b/manpages/conf.py
index 03438b4..a1263b8 100644
--- a/manpages/conf.py
+++ b/manpages/conf.py
@@ -7,7 +7,7 @@
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
 
 project = 'NDN Essential Tools'
-copyright = 'Copyright © 2014-2022 Named Data Networking Project.'
+copyright = 'Copyright © 2014-2023 Named Data Networking Project.'
 author = 'Named Data Networking Project'
 
 # The short X.Y version.
diff --git a/manpages/ndnputchunks.rst b/manpages/ndnputchunks.rst
index 441f9eb..f002a78 100644
--- a/manpages/ndnputchunks.rst
+++ b/manpages/ndnputchunks.rst
@@ -15,7 +15,7 @@
 Version and segment number components are appended to the specified *name* as needed,
 according to the `NDN naming conventions`_.
 
-.. _NDN naming conventions: https://named-data.net/publications/techreports/ndn-tr-22-2-ndn-memo-naming-conventions/
+.. _NDN naming conventions: https://named-data.net/publications/techreports/ndn-tr-22-3-ndn-memo-naming-conventions/
 
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