docs: clarify the x-forwarded-for documentation (#463)
docs: clarify the x-forwarded-for documentation (#463)

Signed-off-by: Brian Pane <5720439aa8fe33541c355982794f1a4cb6b27628@pinterest.com>
jrajahalme/envoy-api,lyft/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,jrajahalme/envoy-api