Change github organization for this and other plugins

PLUGINS.md

@@ -3,11 +3,11 @@
 If you create a plugin, feel free to create a pull request that adds it to the
 list.
 
-- [pain control](https://github.com/bruno-/tmux_pain_control) - standard
+- [pain control](https://github.com/tmux-plugins/tmux-pain-control) - standard
   bindings for controlling panes.
-- [goto session](https://github.com/bruno-/tmux_goto_session) - faster session
+- [goto session](https://github.com/tmux-plugins/tmux-goto-session) - faster session
   switching.
-- [battery osx](https://github.com/bruno-/tmux_battery_osx) - battery status
+- [battery osx](https://github.com/tmux-plugins/tmux-battery-osx) - battery status
   for OSX in tmux `status-right`
-- [logging](https://github.com/bruno-/tmux_logging) - easy logging and
+- [logging](https://github.com/tmux-plugins/tmux-logging) - easy logging and
   screen capturing.