"C++" and "Notepad++" tags have disappeared after update

[ccammack]

This is possibly related to #260, although I tried removing | anchorize and it broke all tags.

given: tags: ["C++", "Notepad++", "Windows"]

browser renders: Tags:, , Windows

html contains: <span class='screen-reader-text'>Tags: </span>, , <a class='tag' href='/tags/windows/'>Windows</a></div>

[MunifTanjim]

Fixed all of #230, #260, #264 together.

As a side-effect, now minimum Hugo version required is: 0.65

[ccammack]

Thank you!