Fix links to black github repo

Author: haplo

README.md

@@ -1,9 +1,9 @@
 # python-lsp-black
 
-[![PyPI](https://img.shields.io/pypi/v/pyls-black.svg)](https://pypi.org/project/python-lsp-black) [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
+[![PyPI](https://img.shields.io/pypi/v/pyls-black.svg)](https://pypi.org/project/python-lsp-black) [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 [![Python](https://github.com/python-lsp/python-lsp-black/actions/workflows/python.yml/badge.svg)](https://github.com/python-lsp/python-lsp-black/actions/workflows/python.yml)
 
-> [Black](https://github.com/ambv/black) plugin for the [Python LSP Server](https://github.com/python-lsp/python-lsp-server).
+> [Black](https://github.com/psf/black) plugin for the [Python LSP Server](https://github.com/python-lsp/python-lsp-server).
 
 ## Install
 
@@ -21,7 +21,7 @@ To avoid unexpected results you should make sure `yapf` and `autopep8` are not i
 - The code will only be formatted if it is syntactically valid Python.
 - Text selections are treated as if they were a separate Python file.
   Unfortunately this means you can't format an indented block of code.
-- `python-lsp-black` will use your project's [pyproject.toml](https://github.com/ambv/black#pyprojecttoml) if it has one.
+- `python-lsp-black` will use your project's [pyproject.toml](https://github.com/psf/black#pyprojecttoml) if it has one.
 
 # Development