Broken links in the documentation

[kat05]

Please see attachment.

https://www.deadlinkchecker.com/website-dead-link-checker.asp

[NoNoNo]

On several pages, the href’s of Previous Page and Next Page links are empty, e.g. on https://learn.getgrav.org/16/webservers-hosting/local-development-with-ddev :

<div id="navigation">
  […]
  <a class="nav-prev tooltip tooltip-bottom" data-tooltip="Previous Page [←]" href=""> <i class="fa fa-angle-left"></i></a>
  <a class="nav-next tooltip tooltip-bottom" data-tooltip="Next Page [→]" href=""><i class="fa fa-angle-right"></i></a>
</div>

IMHO some frontmatter is missing in some files, e.g. in https://github.com/getgrav/grav-learn/blob/develop/pages/09.webservers-hosting/04.local-development-with-ddev/docs.md :

taxonomy:
    category: docs