Add a humans.txt file since it is getting requested. This saves

rlerdorf · rlerdorf · commit 161d16fb4dd1 · 2011-07-16T17:06:42.000Z
a useless web search query.
diff --git a/humans.txt b/humans.txt
@@ -0,0 +1 @@
+Built by humans (mostly), for humans.
