[jpirko/libteam] 40177c: README: add note regarding pull requests

[GitHub]

Branch: refs/heads/master
  Home:   https://github.com/jpirko/libteam
  Commit: 40177cf3f20fa120e3349d6325f68a6a93313523
      https://github.com/jpirko/libteam/commit/40177cf3f20fa120e3349d6325f68a6a933...
  Author: Jiri Pirko 
  Date:   2017-01-22 (Sun, 22 Jan 2017)

Changed paths:
    M README

Log Message:
  -----------
  README: add note regarding pull requests

Signed-off-by: Jiri Pirko