doc: Add info about downloads to the README
doc: Add info about downloads to the README

sheerun/githubsocial,sheerun/githubsocial,amorphid/githubsocial,sheerun/githubsocial,amorphid/githubsocial,sheerun/githubsocial,amorphid/githubsocial,amorphid/githubsocial