README.md: fix appveyor link
authorPaul Brossier <piem@piem.org>
Sat, 25 Mar 2017 10:57:38 +0000 (11:57 +0100)
committerPaul Brossier <piem@piem.org>
Sat, 25 Mar 2017 10:57:38 +0000 (11:57 +0100)

No differences found