Fix the discord link

README.md

@@ -8,7 +8,7 @@ A modern Python package manager with PEP 582 support. [中文版本说明](READM
 
 [![Docs](https://img.shields.io/badge/Docs-mkdocs-blue?style=for-the-badge)](https://pdm.fming.dev)
 [![Twitter Follow](https://img.shields.io/twitter/follow/pdm_project?label=get%20updates&logo=twitter&style=for-the-badge)](https://twitter.com/pdm_project)
-[![Discord](https://img.shields.io/discord/824472774965329931?label=discord&logo=discord&style=for-the-badge)](https://discord.gg/CEUwAmYm)
+[![Discord](https://img.shields.io/discord/824472774965329931?label=discord&logo=discord&style=for-the-badge)](https://discord.gg/Phn8smztpv)
 
 ![Github Actions](https://github.com/pdm-project/pdm/workflows/Tests/badge.svg)
 ![PyPI](https://img.shields.io/pypi/v/pdm?logo=python&logoColor=%23cccccc)

README_zh.md

@@ -8,7 +8,7 @@
 
 [![Docs](https://img.shields.io/badge/Docs-mkdocs-blue?style=for-the-badge)](https://pdm.fming.dev)
 [![Twitter Follow](https://img.shields.io/twitter/follow/pdm_project?label=get%20updates&logo=twitter&style=for-the-badge)](https://twitter.com/pdm_project)
-[![Discord](https://img.shields.io/discord/824472774965329931?label=discord&logo=discord&style=for-the-badge)](https://discord.gg/CEUwAmYm)
+[![Discord](https://img.shields.io/discord/824472774965329931?label=discord&logo=discord&style=for-the-badge)](https://discord.gg/Phn8smztpv)
 
 ![Github Actions](https://github.com/pdm-project/pdm/workflows/Tests/badge.svg)
 ![PyPI](https://img.shields.io/pypi/v/pdm?logo=python&logoColor=%23cccccc)

docs/docs/plugin.md

@@ -125,6 +125,7 @@ which are not covered in the above example:
 - `core.repository_class`: change the class of repository object, which controls how to look for candidates and metadata of a package
 - `core.resolver_class`: change the resolver class, to control the resolution process
 - `core.synchronizer_class`: change the synchronizer_class, to control the installation process
+- `core.install_manager_class`: change the install_manager_class, to control the installation process
 - `core.parser`: add arguments to the **root** argument parser
 
 ### Tips about developing a PDM plugin.

docs/mkdocs.yml

@@ -51,4 +51,4 @@ extra:
     - icon: fontawesome/brands/twitter
       link: https://twitter.com/pdm_project
     - icon: fontawesome/brands/discord
-      link: https://discord.gg/CEUwAmYm
+      link: https://discord.gg/Phn8smztpv