Try again with a copy-paste code block

Are whitespace significant either in appveyor (i.e. YAML) or on
windows?

Author: kutsurak

appveyor.yml

@@ -17,12 +17,12 @@ install:
 build_script:
   - cmd: python -m cibuildwheel --output-dir wheelhouse
   - >
-      IF "%APPVEYOR_REPO_TAG%" == "true"
-      (
-        python -m pip install twine
-        &&
-        twine upload --repository-url https://test.pypi.org/legacy/ --skip-existing wheelhouse\*
-      )
+  IF "%APPVEYOR_REPO_TAG%" == "true"
+  (
+  python -m pip install twine
+  &&
+  python -m twine upload --repository-url https://test.pypi.org/legacy/ --skip-existing wheelhouse\*
+  )
 
 artifacts:
   - path: "wheelhouse\\*.whl"