Update .travis.yml

Author: probonopd

.travis.yml

@@ -23,7 +23,7 @@ script:
 after_success:
  - ls -lh out/* # Assuming you have some files in out/ that you would like to upload
  - wget -c https://github.com/probonopd/uploadtool/raw/master/upload.sh
- - bash ./upload.sh out/*
+ - bash ./upload.sh AppImageUpdate*AppImage
 
 branches:
  except: