Created a Slack community for alpha testers!

I was previously maintaining a newsletter for my first set of testers for Glimst. This would be my main communication channel to relay all of my updates from month to month. Yesterday I transitioned to using Slack as my main communication channel for my initial testers (aka friends and family). Once enough improvement from alpha testers are done, we'll most likely transition to a closed beta then eventually open beta. Hopefully this 2021 we'll achieve a lot and deliver a lot of benefit and value to quite a number of people!