update help and docstring, add tests for DrawCanvas #280
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Thank you for opening a Pull Request at PlutoUI.jl!
Before contributing code
Note that your code will be Unlicensed when added to PlutoUI.jl, not MIT licensed like contributions to Pluto.jl. Take a look at our license: https://github.com/fonsp/PlutoUI.jl/blob/main/LICENSE