[gimp-help] doc: Fix #234: alpha in Add Alpha Channel should have an uppercase A.

[Jacob Boerema <jboerema src gnome org>]

commit 1aa2bbeb2fa6973d8e97b82a21e26f407789acb5
Author: Jacob Boerema <jgboerema gmail com>
Date:   Fri May 28 22:44:08 2021 -0400

    doc: Fix #234: alpha in Add Alpha Channel should have an uppercase A.

 src/menus/layer/alpha-add.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/menus/layer/alpha-add.xml b/src/menus/layer/alpha-add.xml
index 69f1c6439..fcc6d1633 100644
--- a/src/menus/layer/alpha-add.xml
+++ b/src/menus/layer/alpha-add.xml
@@ -39,7 +39,7 @@
           <menuchoice>
             <guimenu>Layer</guimenu>
             <guisubmenu>Transparency</guisubmenu>
-            <guimenuitem>Add alpha Channel</guimenuitem>
+            <guimenuitem>Add Alpha Channel</guimenuitem>
           </menuchoice>.
         </para>
       </listitem>