Add About page CTA

Author: timangus

about.md

@@ -9,3 +9,5 @@ My name is Tim Angus and I'm a 40-something professional software engineer, livi
 ![Portrait](/assets/portrait.jpg)
 
 By the way, "timang", the second-level domain name of this site, is apparently the [Tagalog](https://en.wikipedia.org/wiki/Tagalog_language) word for "stupid" or "idiot". Make of that what you will.
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+As you can see there's an RSS feed link, my email address, and all my various socials down below. Feel free to subscribe/follow/engage/whatever.