Fix a typo in admin interface documentation (#19012)
Fix a typo in admin interface documentation (#19012)

Signed-off-by: Peter Jausovec <5b5d2a7cd9b524ac47cd956d4ca507587bff679e@gmail.com>
envoyproxy/envoy,lyft/envoy,lyft/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy