web/help_popup/demo/help.xml

<?xml version="1.0" encoding="utf-8"?>

<openerp>
    <data noupdate="1">

        <record id="base.action_partner_form" model="ir.actions.act_window">
            <field name="owner_help"><![CDATA[
<b>Hi Odooer,</b>

<br/>
<br/>
<p>
I'm the field 'owner_help' in the Customer action model
</p>
<p>
I'm displayed in a Qweb html report
</p>

<p>
Don't hesitate to customized me with your own words and syntax
</p>

          ]]></field>
        </record>
    </data>

    <data noupdate="0">
        <record id="base.action_partner_form" model="ir.actions.act_window">
            <field name="custom_help"><![CDATA[
<b>Hi developers,</b>

<br/>
<br/>
<p>
I'm the field 'custom_help' in the customer action also displayed in Qweb report.
</p>
<p>
<b>Akretion</b> wrote these words to explain my main purpose:
    <blockquote>
Allows to developers to write documentation on their work.
    </blockquote>
</p>
<p>

</p>

<p>You can write any html tag. Here is an image with img tag</p>

<img src="http://www.akretion.com/sites/50443990c3c67e1bf3000004/theme/images/logo.png"/>

          ]]></field>
        </record>

</data>
</openerp>