[gnome-boxes] Remove unnecessary repetition: to to -> to

[Felipe Borges <felipeborges src gnome org>]

commit 28749f0778853ad2c9d8d8f0179408f4e0d7977f
Author: Yuri Chornoivan <yurchor ukr net>
Date:   Mon Nov 23 09:31:00 2020 +0000

    Remove unnecessary repetition: to to -> to

 help/C/3d-acceleration.page | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/3d-acceleration.page b/help/C/3d-acceleration.page
index 50227284..d63c7ddf 100644
--- a/help/C/3d-acceleration.page
+++ b/help/C/3d-acceleration.page
@@ -25,7 +25,7 @@
     their boxes.</p>
   </comment>
 
-  <p>Boxes now gives you the ability to to enable or disable 3D acceleration for your VMs 
+  <p>Boxes now gives you the ability to enable or disable 3D acceleration for your VMs 
   if both guest and host support it. This should allow you to improve the performance of 
   your everyday graphic-hungry applications and games. It uses <sys>Virgil</sys> to create
   a virtual 3D capable graphics card for your QEMU virtual machines.</p>