Ignore .pandoc_template.html5

Author: spetrosi

.codespellrc

@@ -5,4 +5,4 @@ check-hidden = true
 ignore-multiline-regex = codespell:ignore-begin.*codespell:ignore-end
 ignore-words = .codespell_ignores
 # skip-file is not available https://github.com/codespell-project/codespell/pull/2759
-skip = .README.html
+skip = .pandoc_template.html5,.README.html

.pandoc_template.html5

@@ -25,7 +25,7 @@ Copyright (c) 2017 GitHub Inc.
 
 "GitHub Pandoc HTML5 Template" is Copyright (c) Tristano Ajmone, 2017-2020,
 released under the MIT License (MIT); it contains readaptations of substantial
-portions of the following third party software:
+portions of the following third party softwares:
 
 (1) "GitHub Markdown CSS", Copyright (c) Sindre Sorhus, MIT License (MIT).
 (2) "Primer CSS", Copyright (c) 2016 GitHub Inc., MIT License (MIT).