Is your feature request related to a problem? Please describe.
Related to this conversation Project-MONAI/MONAI#6771 , I want to open an issue for UNET++ documentation and submit a PR for it.
Describe the solution you'd like
A notebook modules/network_contraints/unet_plusplus.ipynb that described input shape versus network configurations. Also I want to make a subfolder modules/network_contraints to store future similar work.
Describe alternatives you've considered
None
Additional context
None