Add categories.html template to default theme. Fixes #2972#2973

Merged

justinmayer merged 2 commits intogetpelican:masterfrom pauloxnet:feature/2972-categories-notmyidea

Feb 1, 2022

+31-3

Commits on Jan 12, 2022

Fix getpelican#2972 Add notmyidea categories.html template
pauloxnet
committed

Commits on Jan 13, 2022

Fix getpelican#2972 Update categories test template
pauloxnet
committed