twine: add page (#8624)

pages/common/twine.md

@@ -0,0 +1,21 @@
+# twine
+
+> Utility for publishing Python packages on PyPI.
+> Subcommands such as `twine upload` have their own usage documentation.
+> More information: <https://twine.readthedocs.io>.
+
+- Upload to the Test PyPI [r]epository and verify things look right:
+
+`twine upload -r testpypi dist/*`
+
+- Upload to PyPI:
+
+`twine upload dist/*`
+
+- Upload to PyPI with a specified [u]sername and [p]assword:
+
+`twine upload -u {{username}} -p {{password}} dist/*`
+
+- Upload to an alternative repository URL:
+
+`twine upload --repository-url {{repository_url}} dist/*`