Update doctrine.rst

fix spelling woh -> whoa, reference https://writingexplained.org/whoa-or-woah-difference

Author: mark2016

doctrine.rst

@@ -132,7 +132,7 @@ need. The command will ask you some questions - answer them like done below:
     The interactive behavior of the ``make:entity`` command was introduced
     in MakerBundle 1.3.
 
-Woh! You now have a new ``src/Entity/Product.php`` file::
+Whoa! You now have a new ``src/Entity/Product.php`` file::
 
     // src/Entity/Product.php
     namespace App\Entity;