Merge pull request #246 from graingert/prettier-mirror

upgrade to pre-commit/mirrors-prettier

Author: graingert

.pre-commit-config.yaml

@@ -35,7 +35,7 @@ repos:
       - id: check-yaml
       - id: mixed-line-ending
 
-  - repo: https://github.com/prettier/pre-commit
+  - repo: https://github.com/pre-commit/mirrors-prettier
     rev: v2.1.2
     hooks:
       - id: prettier