docs: Add use citation from Belle II evidence for B+→K+νν¯ decays paper

[matthewfeickert]

Description

Add use citation from Evidence for B+→K+νν¯ Decays.

Congratulations to the Belle II collaboration on this excellent result!

Checklist Before Requesting Reviewer

• [x] Tests are passing
• [x] "WIP" removed from the title of the pull request
• [x] Selected an Assignee for the PR to be responsible for the log summary

Before Merging

For the PR Assignees:

• [x] Summarize commit messages into a comprehensive review of the PR

* Add use citation from 'Evidence for B+→K+νν¯ Decays'.
   - c.f. https://inspirehep.net/literature/2725943
   - Congratulations to the Belle II collaboration on this excellent result!

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (079356c) 98.28% compared to head (cc4440e) 98.28%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2393 +/- ## ======================================= Coverage 98.28% 98.28% ======================================= Files 69 69 Lines 4539 4539 Branches 803 803 ======================================= Hits 4461 4461 Misses 45 45 Partials 33 33 ``` | [Flag](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | Coverage Δ | | |---|---|---| | [contrib](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | `97.86% <ø> (ø)` | | | [doctest](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | `60.71% <ø> (ø)` | | | [unittests-3.10](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | `96.29% <ø> (ø)` | | | [unittests-3.11](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | `96.29% <ø> (ø)` | | | [unittests-3.8](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | `96.32% <ø> (ø)` | | | [unittests-3.9](https://app.codecov.io/gh/scikit-hep/pyhf/pull/2393/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep) | `96.34% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scikit-hep#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[matthewfeickert]

Relevant RTD build: https://pyhf--2393.org.readthedocs.build/en/2393/citations.html#use-in-publications