[UPD] purchase_exception: remove old usage in readme

purchase_exception/README.rst

@@ -37,13 +37,6 @@ format etc.)
 .. contents::
    :local:
 
-Usage
-=====
-
-.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
-   :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/142/12.0
-
 Bug Tracker
 ===========
 

purchase_exception/data/purchase_exception_data.xml

@@ -23,7 +23,7 @@
         <field name="active" eval="False" />
     </record>
     <record id="pol_excep_qty_check" model="exception.rule">
-        <field name="name">Quantity not negative</field>
+        <field name="name">Quantity not positive</field>
         <field name="description">Purchase line quantity must be positive</field>
         <field name="sequence">50</field>
         <field name="model">purchase.order.line</field>

purchase_exception/static/description/index.html

@@ -376,45 +376,40 @@ <h1 class="title">Purchase Exception</h1>
 <p><strong>Table of contents</strong></p>
 <div class="contents local topic" id="contents">
 <ul class="simple">
-<li><a class="reference internal" href="#usage" id="id1">Usage</a></li>
-<li><a class="reference internal" href="#bug-tracker" id="id2">Bug Tracker</a></li>
-<li><a class="reference internal" href="#credits" id="id3">Credits</a><ul>
-<li><a class="reference internal" href="#authors" id="id4">Authors</a></li>
-<li><a class="reference internal" href="#contributors" id="id5">Contributors</a></li>
-<li><a class="reference internal" href="#maintainers" id="id6">Maintainers</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="id1">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id2">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id3">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id4">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="id5">Maintainers</a></li>
 </ul>
 </li>
 </ul>
 </div>
-<div class="section" id="usage">
-<h1><a class="toc-backref" href="#id1">Usage</a></h1>
-<a class="reference external image-reference" href="https://runbot.odoo-community.org/runbot/142/12.0"><img alt="Try me on Runbot" src="https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas" /></a>
-</div>
 <div class="section" id="bug-tracker">
-<h1><a class="toc-backref" href="#id2">Bug Tracker</a></h1>
+<h1><a class="toc-backref" href="#id1">Bug Tracker</a></h1>
 <p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/purchase-workflow/issues">GitHub Issues</a>.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed
 <a class="reference external" href="https://github.com/OCA/purchase-workflow/issues/new?body=module:%20purchase_exception%0Aversion:%2013.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
 <p>Do not contact contributors directly about support or help with technical issues.</p>
 </div>
 <div class="section" id="credits">
-<h1><a class="toc-backref" href="#id3">Credits</a></h1>
+<h1><a class="toc-backref" href="#id2">Credits</a></h1>
 <div class="section" id="authors">
-<h2><a class="toc-backref" href="#id4">Authors</a></h2>
+<h2><a class="toc-backref" href="#id3">Authors</a></h2>
 <ul class="simple">
 <li>Akretion</li>
 </ul>
 </div>
 <div class="section" id="contributors">
-<h2><a class="toc-backref" href="#id5">Contributors</a></h2>
+<h2><a class="toc-backref" href="#id4">Contributors</a></h2>
 <ul class="simple">
 <li>Mourad EL HADJ MIMOUNE &lt;<a class="reference external" href="mailto:mourad.elhadj.mimoune&#64;akretion.com">mourad.elhadj.mimoune&#64;akretion.com</a>&gt;</li>
 <li>Sudhir Arya &lt;<a class="reference external" href="mailto:sudhir&#64;erpharbor.com">sudhir&#64;erpharbor.com</a>&gt;</li>
 </ul>
 </div>
 <div class="section" id="maintainers">
-<h2><a class="toc-backref" href="#id6">Maintainers</a></h2>
+<h2><a class="toc-backref" href="#id5">Maintainers</a></h2>
 <p>This module is maintained by the OCA.</p>
 <a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose