Enables subclassing of Plot, which enables customisation of node and edge descriptions
What's Changed
* Bump waitress from 1.4.3 to 2.1.1 by dependabot in https://github.com/icfly2/neographviz/pull/8
* get rid of duplicate node by chnyangjie in https://github.com/icfly2/neographviz/pull/7
* Move to class by icfly2 in https://github.com/icfly2/neographviz/pull/9
New Contributors
* chnyangjie made their first contribution in https://github.com/icfly2/neographviz/pull/7
**Full Changelog**: https://github.com/icfly2/neographviz/compare/0.4.6...0.5.0