v0.15.0a3 - documentation improvements

What's Changed

gp-libs is now used for sphinx plugins

Documentation

• Render changelog in linkify_issues (#410)

• Fix Table of contents rendering with sphinx autodoc with sphinx_toctree_autodoc_fix (#410)

Tests

• Test doctests in documentation via pytest-doctest-docutils (#410)

Full Changelog: v0.15.0a2...v0.15.0a3