Add authors taxonomy for blog posts (#435)

earnest

16.32.2020 e26616e170cb5db79b24c6e27a1f873a064429b5

 i18n/en.toml

@@ -7,6 +7,9 @@
[series]
other = "series"

[author]
other = "author"

[reading_time]
one = "One-minute read"
other = "{{ .Count }}-minute read"