Correct typo, low_level_programming.rst

[dinglerod]

cannot supporting querying -> cannot support querying

[CLAassistant]

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[gusthoff]

Hello @dinglerod, thanks for the typo correction. Would you mind signing the Contributor License Agreement, so that we can merge your changes?

[gusthoff]

Hello @dinglerod, thanks again for the typo correction!

This is just a reminder that we need you to sign the Contributor License Agreement, as this is a requirement for merging pull requests. (It's a quick, one-time step, though.)