minor changes in docstring (knapsack_dp)

[Aterolite24]

Describe your change:

Added changes to docstrings from 11406

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• [ ✔️ ] Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
• Documentation change?

Checklist:

• [✔️ ] I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• [✔️ ] I know that pull requests will not be merged if they fail the automated tests.
• [✔️ ] This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• [ ✔️ ] All new Python files are placed inside an existing directory.
• [ ✔️ ] All filenames are in all lowercase characters with no spaces or dashes.
• [ ✔️ ] All functions and variable names follow Python naming conventions.
• [ ✔️ ] All function parameters and return values are annotated with Python type hints.
• [ ✔️ ] All functions have doctests that pass the automated testing.
• [ ✔️ ] All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• [ ✔️ ] If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

[imSanko]

Nice

[Aterolite24]

All checks have been passed. If any changes are required, please let me know.

Thanks :)

[tianyizheng02]

I'm closing this issue because we actually already have an implementation of this algorithm in dynamic_programming/knapsack.py. The author of #11406 didn't do the due diligence of checking the repo beforehand, so by extension your PR is unfortunately a duplicate as well. However, we'd very much welcome a PR that improves upon our existing implementation.

[Aterolite24]

Okay .. sure ..