Add information that editing is locked until resume process completes

Added information that when journey resume is triggered, editing is locked until the resume process completes.

Original sentence:
"4. A modal window appears. Select **Resume Entry** again to confirm."

Modified to:
"4. A modal window appears. Select **Resume Entry** again to confirm. After the confirmation, editing is locked until the Journey Resume process completes."

Author: tanjinhong72

src/engage/journeys/build-journey.md

@@ -90,7 +90,7 @@ Follow these steps to resume entry to a paused Journey:
 1. Select the **Journeys** tab within your Engage space.
 2. Select the **More Options** icon next to the Journey you want to resume.
 3. From the dropdown menu, select **Resume Entry**.
-4. A modal window appears. Select **Resume Entry** again to confirm.
+4. A modal window appears. Select **Resume Entry** again to confirm. After the confirmation, editing is locked until the Journey Resume process completes.
 
 ### Cloning a Journey
 
@@ -172,4 +172,4 @@ Keep the following in mind when working with a published Journey:
 - You can't add, edit, or delete other steps in the Journey.
 - Once Journeys computes and displays user counts, you'll see the list of users at each step of the Journey.
 - Click a user profile to see the Journey list to which they belong.
-- Journeys sends and updates data to Destinations in real-time.
+- Journeys sends and updates data to Destinations in real-time.