Fix typo

Author: jeffscottbrown

src/docs/asciidoc/introduction.ad

@@ -1,7 +1,7 @@
 The GORM Logical Delete plugin provides support for utilizing logical deletes for GORM managed entities in a Grails 3 app.
 
 A "logical" delete (sometimes referred to as a "soft" delete) is a delete that doesn't actually delete the relevant
-data but instead marks the data as deleted.  Marking the data as deleted as the benefit of excluding the data from
+data but instead marks the data as deleted.  Marking the data as deleted has the benefit of excluding the data from
 queries by default while still maintaining the ability to retrieve the data when/if necessary. Essentially the plugin offers
 a mechanism to "hide" domain objects from retrieval. This is useful for retaining data without having it clutter the current
 set of active data.