diagraph 0.2.1

[Robotechnic]

I am submitting

• a new package
• an update for a package

Fix minor bugs and add support for relative length in render width and height.

I have read and followed the submission guidelines and, in particular, I

• selected a name that isn't the most obvious or canonical name for what the package does
• added a typst.toml file with all required keys
• added a README.md with documentation for my package
• have chosen a license and added a LICENSE file or linked one in my README.md
• tested my package locally on my system and it worked
• excluded PDFs or README images, if any, but not the LICENSE