2.0.3
Add white border to banner in README to be visible in dark mode
Add alternate 'dark mode' banner to documentation
Document common 2.0 upgrading issues
Make Travis CI fail if docs have warnings or errors
Fix reference to private urllib3.util.ssl_ module in custom context example (#2889)
Generate changelog with towncrier
Added OpenGraph information to the documentation
Update paid contributor program with early feedback
Release 2.0.0-alpha1
Importing Sphinx docs.
Remove outdated sponsorship tiers
Don't suggest deprecated urllib3[secure] to install certifi
Allow non-OpenSSL TLS libaries with a warning