[gnome-chess/fix-doc] Clarification in documentation

[Jordi Mas <jmas src gnome org>]

commit e0e1b9572d2777eff8e7521cf800f8ddc2a9a672
Author: Jordi Mas <jmas softcatala org>
Date:   Tue Dec 22 21:44:36 2020 +0100

    Clarification in documentation

 help/C/index.page | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/index.page b/help/C/index.page
index 78f7483..73db8f3 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -17,7 +17,7 @@
   </info>
 
 <title><media type="image" src="figures/logo32.png">GNOME Chess logo</media>GNOME Chess</title>
- <p><app>GNOME Chess</app> is GNOME's chess game. It lets you play against the computer or another person. 
GNOME Chess can detect known <link xref="chess-engines">chess engines</link> for computer players.</p>
+ <p><app>GNOME Chess</app> is GNOME's chess game. It lets you play against the computer or another person. 
GNOME Chess can detect known installed <link xref="chess-engines">chess engines</link> for computer 
players.</p>
 
    <section id="play" style="2column">
     <title>Game Play</title>