MONGOID-5616: Dependent Behavior Documentation is incorrect (#5628)

Author: alexbevi

source/reference/associations.txt

@@ -1291,7 +1291,7 @@ The child may become orphaned if it is ordinarily only referenced via the parent
    label.bands.push(Band.first)
    label.delete # Raises an error since bands is not empty.
 
-   Band.first.delete # Will delete all associated albums.
+   Band.first.destroy # Will delete all associated albums.
 
 
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