Update behaviour.xml
Update behaviour.xml

Added a defeat line for April which (I think) is in keeping with her character.
I'm not experienced at editing xml files, so please double check before adding.
chase-s/spni.github.io,Lanedon/spni.github.io,chase-s/spni.github.io,spni/spni.github.io,Lanedon/spni.github.io,Spicyharambe/spni.github.io,spni/spni.github.io,Spicyharambe/spni.github.io,Lanedon/spni.github.io,Spicyharambe/spni.github.io,chase-s/spni.github.io