[gnome-user-docs] help-irc: fix wording

[Alexandre Franke <afranke src gnome org>]

commit 5153b7906e68d641d4e5b8a2047cd59ecc5d9134
Author: Alexandre Franke <alexandre franke gmail com>
Date:   Tue Apr 11 17:03:20 2017 +0200

    help-irc: fix wording
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781097

 gnome-help/C/help-irc.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnome-help/C/help-irc.page b/gnome-help/C/help-irc.page
index 1538707..9944205 100644
--- a/gnome-help/C/help-irc.page
+++ b/gnome-help/C/help-irc.page
@@ -35,7 +35,7 @@
       <link href="irc://irc.gnome.org/gnome" /> to access the <sys>gnome</sys> channel.
    </p>
    <p>
-      While IRC being a real-time discussion, people tend to not reply immediately, so be patient.
+      While IRC is a real-time discussion medium, people tend to not reply immediately, so be patient.
    </p>
 
   <note>