[iagno] help: Use proper markup for UI elements

[Andre Klapper <aklapper src gnome org>]

commit 52cb5c2f429c5cf2de250e6dddd80ee8967cdc24
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Jan 3 15:36:27 2020 +0100

    help: Use proper markup for UI elements

 help/C/ai-game.page | 2 +-
 help/C/play.page    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/help/C/ai-game.page b/help/C/ai-game.page
index ac5103c..c9b6a83 100644
--- a/help/C/ai-game.page
+++ b/help/C/ai-game.page
@@ -19,7 +19,7 @@
   </info>
 
   <title>Play against the computer</title>
-   <p>The computer has different levels of difficulty: Easy, Medium, and Hard.
+   <p>The computer has different levels of difficulty: <gui>Easy</gui>, <gui>Medium</gui>, and 
<gui>Hard</gui>.
    To change this setting, choose a different setting under <gui>Difficulty</gui>
    on the <gui>New Game</gui> screen.</p>
 
diff --git a/help/C/play.page b/help/C/play.page
index af9b797..9b83c69 100644
--- a/help/C/play.page
+++ b/help/C/play.page
@@ -19,7 +19,7 @@
 
   <p><app>Iagno</app> has simple <link xref="rules">rules</link> and is easy to play.</p>
 
-  <p>When the game first starts, you play <em>Dark</em> and the computer player plays <em>Light</em>.  The 
<link xref="ai-game">difficulty level</link> is <gui>Level one</gui> by default.</p>
+  <p>When the game first starts, you play <em>Dark</em> and the computer player plays <em>Light</em>.  The 
<link xref="ai-game">difficulty level</link> is <gui>Easy</gui> by default.</p>
 
 
   <p>The game is played using the mouse. To make a move:</p>