Add info to try migrate from Chamilo LMS 1.9.x to 1.10.x - refs #8390

plugin/bbb/README.md

@@ -2,4 +2,17 @@ BigBlueButton Chamilo plugin
 ============================
 This plugin allows you to have videoconference rooms in each course.
 It requires you to have a BigBlueButton videoconference server installed on another server (ideally).
-Check http://www.bigbluebutton.org/ for more about BigBlueButton.
+Check www.bigbluebutton.org for more about BigBlueButton.
+
+## Migrating from Chamilo LMS 1.9.x to 1.10.x
+For Chamilo 1.10.x, the Videoconference plugin has two new settings options: *Enable global conference* and *Enable conference in course groups*.
+
+##### Database changes
+You need execute this SQL query en your database after making the migration process from 1.9.x.
+
+```sql
+ALTER TABLE plugin_bbb_meeting ADD voice_bridge int NOT NULL DEFAULT 1;
+ALTER TABLE plugin_bbb_meeting ADD group_id int unsigned NOT NULL DEFAULT 0;
+ALTER TABLE plugin_bbb_meeting ADD user_id int unsigned NOT NULL DEFAULT 0;
+ALTER TABLE plugin_bbb_meeting ADD access_url int NOT NULL DEFAULT 1;
+```

plugin/bbb/readme.txt

@@ -1,2 +1,16 @@
-This plugin will create a link in existing and new courses for the teachers to start a videoconference room,
-as well as the administration settings to configure this tool.
+<h1>BigBlueButton Chamilo plugin</h1>
+<p>This plugin allows you to have videoconference rooms in each course.
+It requires you to have a BigBlueButton videoconference server installed on another server (ideally).
+Check <a href="https://www.bigbluebutton.org/">www.bigbluebutton.org</a> for more about BigBlueButton.</p>
+
+<h2>Migrating from Chamilo LMS 1.9.x to 1.10.x</h2>
+<p>For Chamilo 1.10.x, the Videoconference plugin has two new settings options: *Enable global conference* and *Enable conference in course groups*.</p>
+
+<h5>Database changes</h5>
+<p>You need execute this SQL query en your database after making the migration process from 1.9.x.</p>
+<pre><code>
+ALTER TABLE plugin_bbb_meeting ADD voice_bridge int NOT NULL DEFAULT 1;
+ALTER TABLE plugin_bbb_meeting ADD group_id int unsigned NOT NULL DEFAULT 0;
+ALTER TABLE plugin_bbb_meeting ADD user_id int unsigned NOT NULL DEFAULT 0;
+ALTER TABLE plugin_bbb_meeting ADD access_url int NOT NULL DEFAULT 1;
+</code></pre>