README.md: sumab() --> sum_ab() for consistancy (#1855)
* README.md: sumab() --> sum_ab() for consistancy
consistency
* fixup! Format Python code with psf/black push
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Christian Clauss committed
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Parent: c775baf
Committed by GitHub <noreply@github.com>
on 4/12/2020, 3:18:30 PM