Fix fixed_point binary operation documentation

[codereport]

As pointed out by @bdice in #10179, the docs are backwards for some of the binary operations on fixed_point. This PR fixes them and removes the <br> HTML tag as well.

[bdice]

Thanks for the fix! I was very confused when reading #10179, relying on the docs with no background knowledge. 😆

[codereport]

Thanks for the fix! I was very confused when reading #10179, relying on the docs with no background knowledge. laughing

Thanks for catching this! It gets confusing when switch between C++ and other languages which are the opposite and I clearly have worked on this for too long to notice that the wording was backwards.

[mythrocks]

LGTM FWIW.

[codecov]

Codecov Report

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[codereport]

@gpucibot merge