Index: openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-db.xml
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-db.xml,v
diff -u -r1.18.6.1 -r1.18.6.2
--- openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-db.xml	23 Jun 2016 08:32:46 -0000	1.18.6.1
+++ openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-db.xml	21 Apr 2017 15:07:52 -0000	1.18.6.2
@@ -65,7 +65,7 @@
         <title>The Database Creation Script</title>
     <programlisting><xi:include href="../../files/tutorial/myfirstpackage-create.sql" xi:parse="text" xmlns:xi="http://www.w3.org/2001/XInclude"><xi:fallback>example missing</xi:fallback></xi:include></programlisting>
       </figure>
-    <para>The creation script calls a function in PL/pgSQL (PL/pgSQL is a procedural language extention to sql),
+    <para>The creation script calls a function in PL/pgSQL (PL/pgSQL is a procedural language extension to sql),
     <computeroutput><ulink url="/api-doc/plsql-subprogram-one?type=FUNCTION&amp;name=content%5ftype%5f%5fcreate%5ftype">content_type__create_type</ulink></computeroutput>, which
     in turn creates the necessary database changes to support our data
     object.  Notice the use of "mfp."  This is derived from "My