Add an entry fo the ghci command :run to the user guide

docs/users_guide/ghci.xml

@@ -2329,6 +2329,16 @@ bar
 	</listitem>
       </varlistentry>
 
+      <varlistentry>
+	<term>
+          <literal>:run</literal>
+          <indexterm><primary><literal>:run</literal></primary></indexterm>
+        </term>
+	<listitem>
+	  <para>See <literal>:main</literal>.</para>
+	</listitem>
+      </varlistentry>
+
       <varlistentry>
 	<term>
           <literal>:set</literal> <optional><replaceable>option</replaceable>...</optional>