cleanup description

[juftin]

This PR applies some text cleaning to the description param using textwrap.dedent + strip. This came up on a project of mine where I stored shared field descriptions on a class namespace

from pydantic import BaseModel, Field


class CommonDescriptions:
    field_name = """
    This is a multiline field description for the `field_name`
    field. It requires some text cleaning to show up in docs the right way
    """


class Model(BaseModel):
    field_name: str = Field(description=CommonDescriptions.field_name)


class AnotherModel(BaseModel):
    field_name: str = Field(description=CommonDescriptions.field_name)

P.S. This is an awesome project - it really is helping take my docs to the next level with mkdocstrings.

[tlambert03]

Thanks! Nice to see it’s being used, and thanks for taking the time to make a PR