docs: update broken link

[cdrage]

docs: update broken link

What does this PR do?

Updates the broken link to the correct section which should be /docs/proxy

Screenshot / video of UI

N/A

What issues does this PR fix or reference?

N/A, no issue was opened, just noticed this while writing docs

How to test this PR?

N/A

Signed-off-by: Charlie Drage [email protected]