v0.10.9

Manifolds v0.10.9

Diff since v0.10.8

Added

• The manifold HeisenbergMatrices as the underlying manifold of HeisenbergGroup.

Changed

• about.md now also lists contributors of manifolds and a very short history of the package.

Merged pull requests:

• Improve docs (#774) (@kellertuer)
• Heisenberg matrices (#775) (@mateuszbaran)