Correct path to artifact (commonmark#173)

alkuzad · Ashe Connor · commit 36c1553d2a1f · 2019-09-05T11:21:42.000+10:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -14,8 +14,8 @@ build_script:
   - 'tools\appveyor-build.bat'
 
 artifacts:
-  - path: build/src/cmark.exe
-    name: cmark.exe
+  - path: build/src/cmark-gfm.exe
+    name: cmark-gfm.exe
 
 test_script:
   - 'nmake test'
