fix problem with promotions

[FIXED] - Sometimes can happen that if the promotion ends, the promotion is still show

fix problem with promotions

[FIXED] - Sometimes can happen that if the promotion ends, the promotion is still show

changed version in gradle

Added reset settings and improvements

-Added reset settings button
-Added sleep time options
-Changed default sleep time from 10 minutes to 1 hour
-Added message no news if after update there are no news

Update README.md