Update form_customization.rst

ThomasLandauer · web-flow · commit 3e048c9015cd · 2020-05-19T16:54:23.000+02:00
Minor
diff --git a/form/form_customization.rst b/form/form_customization.rst
@@ -257,7 +257,7 @@ Renders any errors for the given field.
 
 .. caution::
 
-    If you're using the Bootstrap 4 form theme, `form_errors()` is already included
+    In the Bootstrap 4 form theme, `form_errors()` is already included
     in `form_label()`, see ":ref:`reference-forms-bootstrap-error-messages`"
 
 .. _reference-forms-twig-widget:
