v2023.10.0

What's Changed

• Create PULL_REQUEST_TEMPLATE.md by @kafitzgerald in #157
• Remove unnecessary Xarray version pin by @kafitzgerald in #159
• Add support for Python 3.11 and remove support for Python 3.8 by @kafitzgerald in #162
• Pin matplotlib to <3.8 by @kafitzgerald in #161
• Add code of conduct by @kafitzgerald in #163
• Fix python versions by @kafitzgerald in #165
• Contributor's guide by @kafitzgerald in #166

Full Changelog: v2023.09.0...v2023.10.0