user doc: Typo fix in the query option example
@@ -42,7 +42,7 @@ You can specify both *Entity Key Predicate* and *Query Options*. If you do,
the OData service obtains the specified entity and applies the query to
that entity. For example, suppose that you set *Entity Key Predicate* to
`*UserName='russellwhyte'*` and you set *Query Options* to
-`*$filter=contains(it,'$example')*`. The connection creates a request
+`*$filter=contains($it,'example')*`. The connection creates a request
that looks something like this:
+
----
