DOC: fixed references to PGPRO 9.6 release notes

Author: Liudmila Mantrova

doc/src/sgml/release-proee-9.6.sgml

@@ -7,25 +7,13 @@
   </formalpara>
 <sect2>
     <title>Overview</title>
-    <para>This release is based on <productname>PostgreSQL</productname> 9.6.6
+    <para>This release is based on <productname>Postgres Pro</productname> 9.6.6.1
       and <productname>Postgres Pro Enterprise</productname> 9.6.5.2. All improvements
-      inherited from <productname>PostgreSQL</productname> 9.6.6 are listed
-      in <link linkend="release-9-6-6"><productname>PostgreSQL</productname> 9.6.6 Release Notes</link>.</para>
+      inherited from <productname>Postgres Pro</productname> 9.6.6.1 are listed
+      in <link linkend="release-pro-9-6-6-1"><productname>Postgres Pro</productname> 9.6.6.1 Release Notes</link>.</para>
     <para>Major enhancements over <productname>Postgres Pro Enterprise</productname>
-      9.6.5.2 include:</para>    
+      9.6.5.2 include:</para>
     <itemizedlist>
-      <listitem>
-      <para>
-      Updated <application>pg_pathman</application> module to version
-      1.4.8.
-      </para>
-      </listitem>
-      <listitem>
-      <para>
-      Updated <application>pg_probackup</application> utility to version
-      2.0.11.
-      </para>
-      </listitem>
       <listitem>
       <para>
       Improved <application>multimaster</application> extension. In particular, the