minor #4648 Update forms.rst (keefekwan)

This PR was submitted for the 2.6 branch but it was merged into the 2.3 branch instead (closes #4648).

Discussion
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Update forms.rst

Edited organize to organization.

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117cb78 Update forms.rst

best_practices/forms.rst

@@ -14,7 +14,7 @@ Building Forms
 
 The Form component allows you to build forms right inside your controller
 code. Honestly, unless you need to reuse the form somewhere else, that's
-totally fine. But for organize and reuse, we recommend that you define each
+totally fine. But for organization and reuse, we recommend that you define each
 form in its own PHP class::
 
     namespace AppBundle\Form;