Added entry for pydocstyle

[rharish101]

pydocstyle added pyproject.toml support in version 6.1.0.
This was added by PR #534.

Resource description

pydocstyle is a static analysis tool for checking compliance with Python docstring conventions.
pydocstyle supports most of PEP 257 out of the box, but it should not be considered a reference implementation.

It can be used standalone, and also as a plugin for flake8.

By submitting this pull request I confirm I've read and complied with the below requirements

• I have read and understood the Contribution Guidelines
• I am making an individual pull request for each entry
• I have added a useful title to the commit
• I have added a useful title to this PR
• I have added the new entry in alphabetical order
• I have used the following format:

  - [Resource Title](link) - Resource short Description (2 lines or less in total)
  

• The new entry meets one of these categories:
  • Is configured via its own tool sub-table in the pyproject.toml file (i.e., [tool.xxx])
  • Is a project template using the pyproject.toml file
  • Is an article about the pyproject.toml file
  • Is a link to a project discussion about pyproject.toml support

[carlosperate]

Thanks for the contribution @rharish101!
Perfect PR 👍