[cairo] Update MacPorts instructions on download page

[Ryan Schmidt]

On May 8, 2008, at 11:24, Carl Worth wrote:

> On Thu, 8 May 2008 05:13:07 -0500, Ryan Schmidt wrote:
>
>> On this page:
>>
>> http://cairographics.org/download/
>>
>> This passage should be deleted:
>
> Hi Ryan,
>
> Thanks for your notes!

[snip]

> But, perhaps you didn't notice that most all pages on
> cairographics.org are part of a wiki that anybody can edit? If you'd
> like to just fix these issues yourself, click on the "Edit" link at
> the lower-left of the page, then register a new username and password,
> and you should be on your way.

Thanks; I had forgotten these are wiki pages.