modules/http docs: improve the example

Otherwise the http module isn't really usable :-/
42 jobs for <span class="ref-name">http-docs</span> in 30 minutes and 15 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #224104
docker linux amd64
build:asan:linux:amd64

00:01:21

passed #224103
docker linux amd64
build:linux:amd64

00:01:20

passed #224105
docker linux amd64 allowed to fail
srpm

00:00:47

 
  Test
passed #224114
docker linux amd64
deckard:linux:amd64

00:01:59

passed #224122
privileged
distro:epel-7

00:02:37

passed #224121
privileged
distro:fedora-29

00:04:39

passed #224113
docker
doc

00:00:59

passed #224111
dind
docker:build

00:02:27

passed #224112
docker linux amd64
installcheck:linux:amd64

00:01:11

passed #224115
docker linux amd64
installcheck:valgrind:linux:amd64

00:02:26

passed #224897
docker
lint:c

00:02:42

passed #224898
docker
lint:clang-scan-build

00:01:02

passed #224107
docker
lint:lua

00:00:23

passed #224106
docker linux amd64
lint:pedantic

00:01:23

passed #224116
docker
osx:build

00:02:17

passed #224118
docker linux amd64
pytests:lint

00:00:52

passed #224119
docker linux amd64
pytests:run

00:02:16

passed #224120
docker linux amd64
respdiff:iter:udp:linux:amd64

00:02:05

passed #224110
docker linux amd64
test:linux:amd64

00:01:08

passed #224117
docker linux amd64
test:linux:amd64:valgrind

00:01:30

passed #224108
docker
lint:c

00:02:31

passed #224109
docker
lint:clang-scan-build

00:01:18

 
  Extended
failed #255305
docker linux amd64
pytests:extended

passed #224890
respdiff
respdiff:fwd-tls6-kresd.udp6

00:00:12

passed #224891
respdiff
respdiff:fwd-udp6-kresd.udp6

00:00:13

passed #224895
respdiff
respdiff:fwd-udp6-unbound.tcp6

00:00:12

passed #224896
respdiff
respdiff:fwd-udp6-unbound.tls6

00:00:12

passed #224894
respdiff
respdiff:fwd-udp6-unbound.udp6

00:00:12

passed #224893
respdiff
respdiff:iter.tls6

00:00:12

passed #224892
respdiff
respdiff:iter.udp6

00:00:12

passed #224131
respdiff
resperf:fwd-tls6.udp-asan

00:21:19

passed #224132
respdiff
resperf:fwd-udp6.udp-asan

00:16:18

passed #224133
respdiff
resperf:iter.udp-asan

00:21:19

canceled #224889
docker linux amd64
pytests:extended

00:00:20

failed #224123
docker linux amd64
pytests:extended

00:06:40

failed #224124
respdiff
respdiff:fwd-tls6-kresd.udp6

00:11:49

failed #224125
respdiff
respdiff:fwd-udp6-kresd.udp6

00:10:48

failed #224129
respdiff
respdiff:fwd-udp6-unbound.tcp6

00:20:49

failed #224130
respdiff
respdiff:fwd-udp6-unbound.tls6

00:30:50

failed #224128
respdiff
respdiff:fwd-udp6-unbound.udp6

00:29:50

failed #224127
respdiff
respdiff:iter.tls6

00:18:19

failed #224126
respdiff
respdiff:iter.udp6

00:09:48

 
Name Stage Failure
failed
pytests:extended Extended There has been a missing dependency failure
No job trace