Docs: Made "Configuring Zed" a link

[olehermanse]

Seems like this was intended to be a link (?). Easier to click it than find the section in the navigation.

Release Notes:

• N/A

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[olehermanse]

@cla-bot check

[cla-bot[bot]]

The cla-bot has been summoned, and re-checked this pull request!

[mrnugget]

Thanks!