Broken link in Developer's corner

Thanks. Fixed. Mirrors were not pointing properly at the main web
server for these pages.

Developers Corner
Developer Information
Flowchart of the PostgreSQL backend

->http://postgresql.readysetnet.com/docs/pgsql/src/tools/backend/index.html

is currently a 404

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
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