Added readme documentation & fix tests

.github/workflows/run-tests.yml

@@ -40,4 +40,4 @@ jobs:
                   composer update --${{ matrix.stability }} --prefer-dist --no-interaction
 
             - name: Execute tests
-              run: ./vendor/bin/testbench package:test --parallel --no-coverage
+              run: ./vendor/bin/testbench package:test

README.md

@@ -99,6 +99,25 @@ The `after` constraint accept a `CarbonInterface` as well. The difference, is th
     ->after($order->created_at)
 ```
 
+### Precision
+Hour Precision
+
+The `precision` method provides fine-grained control over when emails are sent using MailatorSchedule. It allows you to specify specific hours or intervals within a 24-hour period. Here's an example of how to use the precision method:
+```php
+    ->many()
+    ->precision([3-4])
+```
+This will schedule the email dispatch between 3 AM and 4 AM.
+
+or
+```php
+    ->once()
+    ->precision([1])
+```
+This will schedule the email dispatch at 1 AM.
+
+You can continue this pattern to specify the desired hour(s) within the range of 1 to 24.
+
 ### Constraint
 
 The `contraint()` method accept an instance of `Binarcode\LaravelMailator\Constraints\SendScheduleConstraint`. Each constraint will be called when the scheduler will try to send the email. If all constraints return true, the email will be sent.