README: Suggest signoffs for merge commits master
authorW. Trevor King <wking@tremily.us>
Wed, 11 Oct 2017 18:46:08 +0000 (11:46 -0700)
committerW. Trevor King <wking@tremily.us>
Wed, 11 Oct 2017 18:51:32 +0000 (11:51 -0700)
commit253470fd3d9b2001b03f3fa1ff0c0619832ab863
tree3fdb108d6c74eebe8ade9d3efd37b85561d9c974
parenta2127c2b85853795b2bd05b942c43ebe230cb230
README: Suggest signoffs for merge commits

Git's 'pull' doesn't currently support --signoff, although 'merge'
does since 14d01b4f (merge: add a --signoff flag, 2017-07-04,
v2.15.0-rc0 [1]).

[1]: https://github.com/git/git/commit/14d01b4f07a08ee55bffc74f2d6e1b0a4e8ce900

Signed-off-by: W. Trevor King <wking@tremily.us>
README