Update src/engage/campaigns/broadcasts.md

Co-authored-by: rchinn-segment <[email protected]>

Author: pwseg

src/engage/campaigns/broadcasts.md

@@ -47,7 +47,7 @@ Follow these steps to create an email broadcast:
     - To send a message to a pre-built audience, choose `Part of an Audience`, then select the audience.
     - To exclude users from the audience, click **Add condition** in the **And who** section. Click **And who**, then select **And not who**. Segment will exclude users from the audience you choose.
 5. Click **Preview** to estimate the audience size.
-6. Select **Build**
+6. Select **Build**.
 7. Choose an existing template or create a new template.
     - You can edit existing templates. Edited templates won't be saved in the content tab.
     - If you create a new template, enter a name, then select the language and content type.