TinyURLs for everyone!

I've had to make several TinyURLs so that my comments would fit into the limitations that we have. I used unique names so that they can be reused by others:

• https://tinyurl.com/MMgit1 (Modeling Matters Git repo, showing how I made input/output files available when I got the user's code working)

• Perhaps link to some information about the short form URLs, e.g. https://mattermodeling.stackexchange.com/a/1450 for the first one? – Peter Mortensen Jul 24 '20 at 16:07