**Describe the issue** The documentation shows how to use a built-in node controls but does not cover how to implement custom nodes or connectors. Add documentation for creating custom nodes and custom connectors. **Additional context** See #271
Describe the issue
The documentation shows how to use a built-in node controls but does not cover how to implement custom nodes or connectors.
Add documentation for creating custom nodes and custom connectors.
Additional context
See #271