✊ Fix pre-commit d-s version in README

Having this wrong makes people run into #269

Author: KevinHock

Diff for: README.md

@@ -49,7 +49,7 @@ $ detect-secrets scan > .secrets.baseline
 ```
 $ cat .pre-commit-config.yaml
 -   repo: [email protected]:Yelp/detect-secrets
-    rev: v0.12.4
+    rev: v0.13.0
     hooks:
     -   id: detect-secrets
         args: ['--baseline', '.secrets.baseline']