update some urls

Patch applied to HEAD and 8.0.X. Thanks.

---------------------------------------------------------------------------

Robert Treat wrote:

This patch updates a number of urls in a number of files. Most are just
poinitng to the TODO list within the main website.

--
Robert Treat
Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL

[ Attachment, skipping... ]

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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match

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