Add link to pyproject-api docs as example of this extension (#267)

* Add link to pyproject-api docs as example of this extension

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Change urls.Homepage to this repo url

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: ketozhang

README.md

@@ -7,7 +7,10 @@ versions](https://img.shields.io/pypi/pyversions/sphinx-autodoc-typehints.svg)](
 [![check](https://github.com/tox-dev/sphinx-autodoc-typehints/actions/workflows/check.yml/badge.svg)](https://github.com/tox-dev/sphinx-autodoc-typehints/actions/workflows/check.yml)
 
 This extension allows you to use Python 3 annotations for documenting acceptable argument types and return value types
-of functions. This allows you to use type hints in a very natural fashion, allowing you to migrate from this:
+of functions. See an example of the Sphinx render at the
+[pyproject-api docs](https://pyproject-api.readthedocs.io/en/latest/).
+
+This allows you to use type hints in a very natural fashion, allowing you to migrate from this:
 
 ```python
 def format_unit(value, unit):

pyproject.toml

@@ -9,7 +9,7 @@ readme.file = "README.md"
 readme.content-type = "text/markdown"
 keywords = ["virtual", "environments", "isolated", "testing"]
 license = "MIT"
-urls.Homepage = "http://pyproject_api.readthedocs.org"
+urls.Homepage = "https://github.com/tox-dev/sphinx-autodoc-typehints"
 urls.Source = "https://github.com/tox-dev/sphinx-autodoc-typehints"
 urls.Tracker = "https://github.com/tox-dev/sphinx-autodoc-typehints/issues"
 urls.Changelog = "https://github.com/tox-dev/sphinx-autodoc-typehints/blob/main/CHANGELOG.md"