Add a capture to article include to use external-url

[druttka]

I tried using the external-url feature as described in the docs for writing a linklog.

It didn't work for me, so I looked into the includes and made this change for myself. It seems to work, although I'm not sure if it's in 100% alignment with the project goals or if there are other parts of Octopress that I am not properly accounting for.

Anyway, for what it's worth...

[tra]

I was hoping to use this feature as well... any idea why it hasn't been merged?

[jms1989]

This feature still doesn't seem to be working. I guess for now, I have to link a external article within a post.