update readme to match project (Klipper3d#3)

README.md

@@ -1,4 +1,12 @@
-Welcome to the Klipper project!
+Welcome to the Danger Klipper project!
+
+This is a community-maintained fork of the [Klipper](https://github.com/Klipper3d/klipper) firmware.
+
+Our goal is to support features and behavior that could be construed as "risky" if used incorrectly.
+
+If i want my printer to light itself on fire, I should be able to make my printer light itself on fire.
+
+"Dangerous Klipper for dangerous users"
 
 [![Klipper](docs/img/klipper-logo-small.png)](https://www.klipper3d.org/)