add sum layer

lenet

Update README.md

add windows install instruction

Fix spelling and formatting in README [skip ci]

fix xdg-open not found error on MacOS

doc: add instructions of getting started in README.md

Fixing os.path.join '\' issue for Windows compatibility

* Add instructions for installing pdflatex package.
* Add commands for executing example.

* Add link to `examples` directory
* Convert text to complete sentences for readability
* Separate bash and Python code for better understanding
* Add Python syntax highlighting
* Add explicit instructions to help users get started easier

Added option to name input image node

Quickfix to remove pos hardcoding in to_skip function

Adding a `name` parameter to `to_input` allows referencing the input image, e.g., for drawing connectors or relative positioning. I dislike `temp` as the default name but didn't change it in order to preserve backward compatibility.

python interface