Update RES.xml

Added "Previous in gallery", "Toggle images" and "Next in gallery". Changed some Text buttons with icons (up,down,upvote,downvote). Changed the description to be shorter a little so it can fit on screen.
Update README.md

Updated readme with clearer instructions.
Update README.md
Reddit_logo.png

Changed remote logo.
Merge pull request #1 from rokerot/master

merging cool stuff