fix misspelled method name

Misspelled the word "delete": was "deletet" before

Author: uwla

README.md

@@ -471,12 +471,12 @@ article, but one of its role has, the user will also have that permission.
 ### Per-model permission deletion
 
 To delete all per-model permissions associated with a model,
-you can use the `deletetThisModelPermissions` method that comes
+you can use the `deleteThisModelPermissions` method that comes
 with the `Permissionable` trait.
 
 ```php
 <?php
-$model->deletetThisModelPermissions();
+$model->deleteThisModelPermissions();
 ```
 
 If you want that behavior to  be  triggered  automatically  before  deleting  an
@@ -646,15 +646,15 @@ permissions:
 
 ```php
 <?php
-Article::deletetGenericModelPermissions();
+Article::deleteGenericModelPermissions();
 ```
 
 To delete all model permissions, both generic model  permissions  and  per-model
 permissions (be careful with this one, since it will delete all of them):
 
 ```php
 <?php
-Article::deletetAllModelPermissions();
+Article::deleteAllModelPermissions();
 ```
 
 ### Resource Policy

src/Traits/Permissionable.php

@@ -14,7 +14,7 @@
      *
      * @return void
      */
-    public function deletetThisModelPermissions()
+    public function deleteThisModelPermissions()
     {
         self::Permission()::where([
             'model' => $this::class,
@@ -27,7 +27,7 @@ public function deletetThisModelPermissions()
      *
      * @return void
      */
-    public static function deletetAllModelPermissions()
+    public static function deleteAllModelPermissions()
     {
         self::Permission()::where('model', self::class)->delete();
     }
@@ -37,7 +37,7 @@ public static function deletetAllModelPermissions()
      *
      * @return void
      */
-    public static function deletetGenericModelPermissions()
+    public static function deleteGenericModelPermissions()
     {
         self::Permission()::where([
             'model' => self::class,