Blog/site update

summary of last few years of site changes.

I now host this site on Github, since it is free and fairly easy for me to use. I push the new version of the site with a simple git push. I only pay for my domain name.

I am still using the same blog builder Python script I wrote years ago, but I've refactored it a dozen times. I also use a similar script to rebuild static pages from markdown source too.

Other changes: