Fix markdown issue with recalc link

[schveiguy]

On the page https://docs.wpilib.org/en/stable/docs/software/advanced-controls/introduction/introduction-to-feedforward.html#introduction-to-dc-motor-feedforward I noticed the markdown link is not properly detected.

Theorizing the space is the problem, but I'm not sure how to test.

[sciencewhiz]

Thanks for the fix!

but I'm not sure how to test.

for large changes, you can build locally using the instructions here: https://docs.wpilib.org/en/stable/docs/contributing/frc-docs/build-instructions.html

For small changes like this one, one of the CI tasks builds the PR in readthedocs, and you can browse the updated docs from that.