user doc: Correct a typo - changes "contain" to "contains"
@@ -22,7 +22,7 @@ displays the steps that you can add to the integration.
. In the *Property Name* field, start to enter
`*text*` and when `text`
appears below the field, click it.
-The Twitter `text` field, which contain a tweet,
+The Twitter `text` field, which contains a tweet,
is the data that you want the filter to evaluate.
. In the *Operator* field, accept *contains* as the condition to be met for the integration to
