Fix build with sphinxcontrib-bibtex 2.0 and later
Also fix typo in changelog
Change-Id: I088292fc12ae8c182a00bbb2a6732154105e60b7
diff --git a/conf.py b/conf.py
index 324955e..c6e587c 100644
--- a/conf.py
+++ b/conf.py
@@ -18,7 +18,7 @@
# -- Project information -----------------------------------------------------
project = 'NDN Packet Format Specification'
-copyright = '2013-2020, Named Data Networking Project'
+copyright = '2013-2021, Named Data Networking Project'
# The short X.Y version.
version = '0.3'
@@ -31,7 +31,7 @@
# If your documentation needs a minimal Sphinx version, state it here.
#
-needs_sphinx = '1.3'
+needs_sphinx = '2.1'
# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
@@ -52,6 +52,8 @@
# This pattern also affects html_static_path and html_extra_path.
exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+bibtex_bibfiles = ['refs.bib']
+
# -- Options for HTML output -------------------------------------------------