Update forms.rst

Hi there, 
I thought it would be nice to specify that you can set a label to false to disable it. I needed it for a project, couldn't find it in the doc, and had to search through a couple of stackoverflow posts to find the solution.
Update forms.rst

not sure what you meant about the wrapping, I applied a soft wrap after "to your input,".
Let me know how that looks
Update forms.rst
feature #3548 Update forms.rst (atmosf3ar)

This PR was merged into the 2.3 branch.

Discussion
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Update forms.rst

Hi there,
I thought it would be nice to specify that you can set a label to false to disable it. I needed it for a project, couldn't find it in the doc, and had to search through a couple of stackoverflow posts to find the solution.

Commits
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fb5f12d Update forms.rst
3116b39 Update forms.rst
95b4d40 Update forms.rst