Hello Leslie,
Adding Markdown support to Konqueror is on my TODO list.
With a simple search I was able to find the following markdown-to-html converter:
https://github.com/pschlump/markdown-cli
I have not tested it, but you can use it to preprocess markdown files if you want to have
them as HTML. Then you can view these files with Konqueror.
--
Philippe Mavridis