add reference to avian-swt-examples.git in readme.txt
add reference to avian-swt-examples.git in readme.txt

lostdj/avian,marcinolawski/avian,minor-jason/avian,ucdseniordesign/avian,bgould/avian,dicej/avian,bigfatbrowncat/avian-pack.avian,lostdj/avian,getlantern/avian,MaartenR/avian,getlantern/avian,marcinolawski/avian,lwahlmeier/avian,lwahlmeier/avian,MaartenR/avian,bgould/avian,lwahlmeier/avian,dicej/avian,marcinolawski/avian,badlogic/avian,bigfatbrowncat/avian-pack.avian,lwahlmeier/avian,minor-jason/avian,ucdseniordesign/avian,marcinolawski/avian,minor-jason/avian,ucdseniordesign/avian,joshuawarner32/avian,badlogic/avian,bigfatbrowncat/avian-pack.avian,joshuawarner32/avian,MaartenR/avian,getlantern/avian,minor-jason/avian,ucdseniordesign/avian,dicej/avian,lostdj/avian,dicej/avian,bgould/avian,joshuawarner32/avian,badlogic/avian,lostdj/avian,joshuawarner32/avian,bgould/avian,getlantern/avian,MaartenR/avian,bigfatbrowncat/avian-pack.avian,badlogic/avian