[gnome-boxes/fix-references-to-new-button] help: Change the create machine button label from "New" to "+"

[Felipe Borges <felipeborges src gnome org>]

commit e0148c3e3355b7abadd32247e37bb5f052cc1e01
Author: Felipe Borges <felipeborges gnome org>
Date:   Fri Jun 5 14:18:39 2020 +0200

    help: Change the create machine button label from "New" to "+"

 help/C/create.page | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/create.page b/help/C/create.page
index 2c2d33ac..19d05ca7 100644
--- a/help/C/create.page
+++ b/help/C/create.page
@@ -25,7 +25,7 @@
   message is displayed.</p>
 
   <steps>
-    <item><p>Click <gui style="button">New</gui> in the top left corner to launch
+    <item><p>Click <gui style="button">+</gui> in the top left corner to launch
     the box creation wizard.</p></item>
     <item><p>At the wizard's <gui>Source Selection</gui> screen, choose a source
     to determine the type of box you want to create. A local virtual machine