Add Appveyor build for Windows.

32-bit build against VS 2015.
64-bit build against VS 2017.

1 files changed, 2 insertions, 1 deletions

diff --git a/README.md b/README.md
index ecd0337..4891af6 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 Quackle   ![Icon](https://github.com/quackle/quackle/raw/master/IconSmall.png)
 =======
 
-[![Build Status](https://secure.travis-ci.org/quackle/quackle.png?branch=master)](http://travis-ci.org/quackle/quackle)
+[![Travis build status](https://secure.travis-ci.org/quackle/quackle.png?branch=master)](http://travis-ci.org/quackle/quackle)
+[![AppVeyor build status](https://ci.appveyor.com/api/projects/status/ttcu5vruvcdljwel/branch/master?svg=true)](https://ci.appveyor.com/project/jfultz/quackle/branch/master)
 
 Crossword game artificial intelligence and analysis tool.