Update URL for FAQ_MINGW.

Author: bmomjian

doc/FAQ_MINGW

@@ -6,7 +6,7 @@
    Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
 
    The most recent version of this document can be viewed at
-   http://momjian.postgresql.org/main/writings/pgsql/project/win32.html.
+   http://www.postgresql.org/docs/faqs.FAQ_MINGW.html.
 
    The FAQ for running PostgreSQL on native Win32 is at
    http://pginstaller.projects.postgresql.org/FAQ_windows.html.

doc/src/FAQ/FAQ_MINGW.html

@@ -14,8 +14,8 @@ <h1 style="text-align: center;">Compiling PostgreSQL On Native Win32 FAQ<br>
 </P>
 
 <P>The most recent version of this document can be viewed at <A href=
-"http://momjian.postgresql.org/main/writings/pgsql/project/win32.html">
-http://momjian.postgresql.org/main/writings/pgsql/project/win32.html</A>.</P>
+"http://www.postgresql.org/docs/faqs.FAQ_MINGW.html">
+http://www.postgresql.org/docs/faqs.FAQ_MINGW.html</A>.</P>
 
 <P>The FAQ for running PostgreSQL on native Win32 is at <A href=
 "http://pginstaller.projects.postgresql.org/FAQ_windows.html">