[cantor] doc: Renew teh instructions on how to obtain help on the 'Help' panel

[Yuri Chornoivan]

Git commit 4273ccdc7111cb279e87606a7d7463aeb83c7b58 by Yuri Chornoivan.
Committed on 04/02/2020 at 09:49.
Pushed by yurchor into branch 'master'.

Renew teh instructions on how to obtain help on the 'Help' panel

M  +1    -1    doc/index.docbook

https://invent.kde.org/kde/cantor/commit/4273ccdc7111cb279e87606a7d7463aeb83c7b58

diff --git a/doc/index.docbook b/doc/index.docbook
index cdcac1a3..b68bd388 100644
--- a/doc/index.docbook
+++ b/doc/index.docbook
@@ -271,7 +271,7 @@ to scientific programming.
   The Worksheet interface of &cantor; consists of three parts:
   <orderedlist>
     <listitem><para>The tab bar, where you can switch through the open worksheets.</para></listitem>
-    <listitem><para>A help panel, where help for a specific command is displayed if you enter "? command".</para></listitem>
+    <listitem><para>A help panel, where help for a specific command is displayed if you enter <userinput>?? <replaceable>command</replaceable></userinput>, <userinput>describe(<replaceable>command</replaceable>)</userinput> or <userinput>example(<replaceable>command</replaceable>)</userinput> (<application>Maxima</application> backend).</para></listitem>
     <listitem><para>A Variable Manager panel where you can see the list of all available variables on the current worksheet. The Help and Variable Manager panels are shown as tabs on a sidebar of a &cantor; window. Variable manager can be used for Maxima (if enabled on <menuchoice><guimenu>Settings</guimenu><guimenuitem>Configure &cantor;...</guimenuitem></menuchoice> <guilabel>Maxima</guilabel> page), &kalgebra;, Octave, Python2, Python3, Qalculate, and Scilab backends only.</para></listitem>
     <listitem><para>The worksheet itself.</para></listitem>
   </orderedlist>