[totem/mallard-documentation] Clarify how to open videos after adding them

[Andre Klapper <aklapper src gnome org>]

commit ef3a736f80791d9a5ed8fa2aca96b6d224a19cfd
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Jan 11 23:59:11 2019 +0100

    Clarify how to open videos after adding them

 help/C/file-open.page | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/help/C/file-open.page b/help/C/file-open.page
index acdf0bfc..536662f9 100644
--- a/help/C/file-open.page
+++ b/help/C/file-open.page
@@ -35,19 +35,21 @@
 
   <list>
     <item>
-      <p>Select a video from the files already displayed in the main window.</p>
+      <p>Select a video from the list already displayed in the main window.</p>
     </item>
     <item>
       <p>Press the <gui style="button">+</gui> button in the top-left corner of
       the window and select <gui style="menuitem">Add Local Video…</gui>.
-      Select the files that you want to open in the file chooser. Press
-      <gui style="button">Add</gui>.</p>
+      Select the video(s) that you want to open. Press
+      <gui style="button">Add</gui>. The video will be added to the list in the
+      main window and you can select it from there.</p>
     </item>
     <item>
       <p>Press the <gui style="button">+</gui> button in the top-left corner of
       the window and select <gui style="menuitem">Add Web Video…</gui>.
-      Type or paste the address of the file you would like to open. Press
-      <gui style="button">Add</gui>.</p>
+      Type or paste the address of the video that you want to open. Press
+      <gui style="button">Add</gui>. The video will be added to the list in the
+      main window and you can select it from there.</p>
     </item>
 <!-- TODO: find where Play Disc is now.
     <item>