minor #6325 Minor error (ThomasLandauer)

This PR was submitted for the 2.8 branch but it was merged into the 2.7 branch instead (closes #6325).

Discussion
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Minor error

However, I still don't understand the sentence ;-) What is a "property path string"?

Commits
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276e38d Minor error

Author: wouterj

reference/forms/types/options/preferred_choices.rst.inc

@@ -43,7 +43,7 @@ This will "prefer" the "now" and "tomorrow" choices only:
 .. image:: /images/reference/form/choice-example3.png
    :align: center
 
-Finally, if your values are objects, you can also specific a property path string
+Finally, if your values are objects, you can also specify a property path string
 on the object that will return true or false.
 
 The preferred choices are only meaningful when rendering a ``select`` element