Fixing the "No GitHub API authentication could be found" when jekyll serve

[ahuacatl]

GitHub Metadata: No GitHub API authentication could be found. Some fields may be missing or have incorrect data
I keep getting this warning on my terminal

It should be fixed, this is a possible answer

[fgreve]

Add github: [metadata]
at the end of _config.yml
*from here

[sabgaby]

Thanks @fgreve
all I did was add
github: [metadata] encoding: UTF-8 kramdown: input: GFM hard_wrap: false
to the config file. The link says to add github-pages gem, but since jekyll 2.5 this is not necessary