Fix README

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index d60b44b..26685b1 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,7 @@ $rules = ['password' => 'required'];
 $hird = new Hird($fields, $rules);
 ```
 
-### 'date-format`
+### `date-format`
 
 The `date-format` validator validates the string format of a date, and is registered as the `date-format` rule. It will pass validation if the value is set and the value is in the format specified by the rule.