[iagno] Update some confusing strings.

[Arnaud B. <arnaudb src gnome org>]

commit 3410710cb40fc537696b2442eb868b7e63c21972
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Sep 13 14:13:39 2019 +0200

    Update some confusing strings.
    
    Fixes #11 and more.

 data/org.gnome.Reversi.gschema.xml | 8 ++++----
 src/iagno.vala                     | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/data/org.gnome.Reversi.gschema.xml b/data/org.gnome.Reversi.gschema.xml
index 2e6e972..aad02ce 100644
--- a/data/org.gnome.Reversi.gschema.xml
+++ b/data/org.gnome.Reversi.gschema.xml
@@ -68,10 +68,10 @@
     </key>
     <key name="highlight-turnable-tiles" type="b">
       <default>false</default>
-      <!-- Translators: summary of a settings key, see 'dconf-editor 
/org/gnome/iagno/highlight-turnable-tiles' -->
-      <summary>A flag to highlight turnable tiles</summary>
-      <!-- Translators: description of a settings key, see 'dconf-editor 
/org/gnome/iagno/highlight-turnable-tiles'; a "ply" here means a "play", a "move": the player moves mouse 
cursor and sees what he can capture by playing there -->
-      <description>If “true”, the tiles that will be captured to the opponent by a ply are 
highlighted.</description>
+      <!-- Translators: summary of a settings key, see 'dconf-editor 
/org/gnome/iagno/highlight-turnable-tiles'; these are not the playable tiles, but the one that could be 
captured by a play -->
+      <summary>A flag to highlight capturable tiles</summary>
+      <!-- Translators: description of a settings key, see 'dconf-editor 
/org/gnome/iagno/highlight-turnable-tiles'; the player moves mouse cursor and sees what he can capture by 
playing there -->
+      <description>If “true”, the tiles that will be captured to the opponent by a play are 
highlighted.</description>
     </key>
     <key name="num-players" type="i">
       <default>1</default>
diff --git a/src/iagno.vala b/src/iagno.vala
index 8fcc605..98c7967 100644
--- a/src/iagno.vala
+++ b/src/iagno.vala
@@ -364,8 +364,8 @@ private class Iagno : Gtk.Application, BaseApplication
         appearance_menu.append_section (null, section);
 
         section = new GLib.Menu ();
-        /* Translators: hamburger menu "Appearance" submenu entry; highlight-turnable-tiles togglebutton 
(with a mnemonic that appears pressing Alt) */
-        section.append (_("Highlight _turnable tiles"), "app.highlight-turnable-tiles");
+        /* Translators: hamburger menu "Appearance" submenu entry; highlight-capturable-tiles togglebutton 
(with a mnemonic that appears pressing Alt); these are not the playable tiles, but the one that could be 
captured by a play */
+        section.append (_("Highlight _capturable tiles"), "app.highlight-turnable-tiles");
         section.freeze ();
         appearance_menu.append_section (null, section);
         appearance_menu.freeze ();