Add Prettier hook for Markdown and reformat documentation

Author: fangfufu

.pre-commit-config.yaml

@@ -7,6 +7,12 @@ repos:
     -   id: check-yaml
     -   id: check-added-large-files
     -   id: check-merge-conflict
+-   repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v3.1.0
+    hooks:
+    -   id: prettier
+        args: [--prose-wrap, always, --print-width, "80"]
+        types: [markdown]
 -   repo: local
     hooks:
     -   id: format