I have decided to move my files from GitHub to this site. Why? Well, there are two main reasons.
First, GitHub is not really designed for hosting documents. It is a great tool for version control and collaboration, but not for publishing content. It's great that it is free, but I feel a bit guilty to use it to get around Google Drive quotas.
Second, GitHub pages are updated slowly and sometimes not at all. Pages are reformatted from Markdown to HTML. This has been running slowly. It usually takes minutes, but today it hasn't updated at all.
Look at the blog pages - currently under development - for new materials.