[swell-foop] Improve translators comments.

[Arnaud B. <arnaudb src gnome org>]

commit bda661ce8efe84ddd6df719a52724fdf745c70db
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Mon Jun 1 12:06:14 2020 +0200

    Improve translators comments.

 data/ui/swell-foop.ui | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/data/ui/swell-foop.ui b/data/ui/swell-foop.ui
index 51c2b51..3e7c247 100644
--- a/data/ui/swell-foop.ui
+++ b/data/ui/swell-foop.ui
@@ -30,19 +30,19 @@
         <attribute name="label" translatable="yes">_Setup</attribute>
         <section>
           <item>
-            <!-- Translators: entry of the Setup submenu of the hamburger menu; set size to "small"; other 
possible sizes are "normal" and "large" -->
+            <!-- Translators: entry of the Setup submenu of the hamburger menu (with a mnemonic that appears 
when pressing Alt); set size to "small"; other possible sizes are "Nor_mal (15 × 10)" and "_Large (20 × 15)" 
-->
             <attribute name="label" translatable="yes">_Small (6 × 5)</attribute>
             <attribute name="action">win.size</attribute>
             <attribute name="target">small</attribute>
           </item>
           <item>
-            <!-- Translators: entry of the Setup submenu of the hamburger menu; set size to "normal"; other 
possible sizes are "small" and "large" -->
+            <!-- Translators: entry of the Setup submenu of the hamburger menu (with a mnemonic that appears 
when pressing Alt); set size to "normal"; other possible sizes are "_Small (6 × 5)" and "_Large (20 × 15)" -->
             <attribute name="label" translatable="yes">Nor_mal (15 × 10)</attribute>
             <attribute name="action">win.size</attribute>
             <attribute name="target">normal</attribute>
           </item>
           <item>
-            <!-- Translators: entry of the Setup submenu of the hamburger menu; set size to "large"; other 
possible sizes are "small" and "normal" -->
+            <!-- Translators: entry of the Setup submenu of the hamburger menu (with a mnemonic that appears 
when pressing Alt); set size to "large"; other possible sizes are "_Small (6 × 5)" and "Nor_mal (15 × 10)" -->
             <attribute name="label" translatable="yes">_Large (20 × 15)</attribute>
             <attribute name="action">win.size</attribute>
             <attribute name="target">large</attribute>
@@ -50,19 +50,19 @@
         </section>
         <section>
           <item>
-            <!-- Translators: entry of the Setup submenu of the hamburger menu; set number of colors; other 
possibilities are "T_hree colors" and "_Four colors" -->
+            <!-- Translators: entry of the Setup submenu of the hamburger menu (with a mnemonic that appears 
when pressing Alt); set number of colors; other possibilities are "T_hree colors" and "_Four colors" -->
             <attribute name="label" translatable="yes">_Two colors</attribute>
             <attribute name="action">win.change-colors</attribute>
             <attribute name="target">2</attribute>
           </item>
           <item>
-            <!-- Translators: entry of the Setup submenu of the hamburger menu; set number of colors; other 
possibilities are "_Two colors" and "_Four colors" -->
+            <!-- Translators: entry of the Setup submenu of the hamburger menu (with a mnemonic that appears 
when pressing Alt); set number of colors; other possibilities are "_Two colors" and "_Four colors" -->
             <attribute name="label" translatable="yes">T_hree colors</attribute>
             <attribute name="action">win.change-colors</attribute>
             <attribute name="target">3</attribute>
           </item>
           <item>
-            <!-- Translators: entry of the Setup submenu of the hamburger menu; set number of colors; other 
possibilities are "_Two colors" and "T_hree colors" -->
+            <!-- Translators: entry of the Setup submenu of the hamburger menu (with a mnemonic that appears 
when pressing Alt); set number of colors; other possibilities are "_Two colors" and "T_hree colors" -->
             <attribute name="label" translatable="yes">_Four colors</attribute>
             <attribute name="action">win.change-colors</attribute>
             <attribute name="target">4</attribute>