Deploy installers to Github. (#110)

appveyor.yml

@@ -187,6 +187,16 @@ artifacts:
   # Archive the generated packages in the ci.appveyor.com build report.
   - path: dist\*
 
+deploy:
+  tag: $(APPVEYOR_REPO_TAG_NAME)
+  provider: GitHub
+  auth_token:
+    secure: d3qqX7bmrBiKJI38yFPc5vHrGGfS3LxLC7FaG6ewI2ghPPE22Pk6QtyrEFFb73PL
+  artifact:  /.*\.exe/
+  draft: true
+  on:
+    APPVEYOR_REPO_TAG: true        # deploy on tag push only
+
 #on_success:
 #  - TODO: upload the content of dist/*.whl to a public wheelhouse
 #