Highlight Canvas feature

[kobecow]

I looked for a way to draw rectangles on pdf. I found @react-pdf/render had that ability. Today I found this discussion and understood how to draw rectangle on PDF.

I'd like to add an example of using Canvas in README.md or Recipes.
What do you think ?

[wojtekmaj]

What we really need is a way to properly link all the CodeSandboxes, which there are many, to Wiki so the users could click around and see all the examples live, working!