DOC: fixed productname instances in installation-bin

Author: Liudmila Mantrova

doc/src/sgml/installation-bin.sgml

@@ -3,9 +3,9 @@
 <chapter id="installation-bin">
 <title>Binary Installation</title>
 <sect1 id="binary-installation-on-linux">
-  <title>Installing <productname>&project;</productname> on Linux</title>
+  <title>Installing <productname>&productname;</productname> on Linux</title>
   <para>
-    For Linux-based operating systems, <productname>&project;</productname> is shipped
+    For Linux-based operating systems, <productname>&productname;</productname> is shipped
     as binary packages. Each <productname>&project;</productname> binary
     distribution consists of several packages. The package structure differs
     from vanilla <productname>PostgreSQL</productname> and offers the following