[gspell] docs: add GtkEntry section in the intro

[Sébastien Wilmet <swilmet src gnome org>]

commit ba375b1458814ae68866c7483bac2fced57dc8b0
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Nov 26 18:51:29 2016 +0100

    docs: add GtkEntry section in the intro

 docs/reference/intro.xml.in |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/intro.xml.in b/docs/reference/intro.xml.in
index 196c369..74b3ffa 100644
--- a/docs/reference/intro.xml.in
+++ b/docs/reference/intro.xml.in
@@ -37,4 +37,13 @@
       <link linkend="GtkTextView"><type>GtkTextView</type></link> widget.
     </para>
   </refsect1>
+
+  <refsect1>
+    <title>How to enable inline spell checking in a GtkEntry</title>
+    <para>
+      See the <link linkend="gspell-entry-basic-setup"><function>gspell_entry_basic_setup()</function></link>
+      convenience function to quickly enable inline spell checking in a
+      <link linkend="GtkEntry"><type>GtkEntry</type></link> widget.
+    </para>
+  </refsect1>
 </part>