docs: cross-linking nitpicks

- clickable module references
- clickable RFC references via :rfc:`NNN#anchor`
18 jobs for nitpicks in 8 minutes and 38 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Build
passed #125577
docker linux amd64
build:clang:linux:amd64

00:01:04

passed #125576
docker linux amd64
build:linux:amd64

00:00:59

passed #125578
docker linux amd64
srpm

00:00:49

 
  Test
passed #125585
docker linux amd64
deckard:linux:amd64

00:07:10

passed #125592
privileged
distro:epel-7

00:03:21

passed #125591
privileged
distro:fedora-27

00:04:11

passed #125584
docker
doc

00:00:58

passed #125583
docker linux amd64
installcheck:linux:amd64

00:01:08

passed #125586
docker linux amd64
installcheck:valgrind:linux:amd64

00:01:53

passed #125580
docker
lint:c

00:02:35

failed #125581
docker allowed to fail
lint:clang-scan-build

00:01:23

passed #125579
docker
lint:lua

00:00:33

passed #125589
docker linux amd64
respdiff:iter:tcp:linux:amd64

00:02:29

passed #125590
docker linux amd64
respdiff:iter:tls:linux:amd64

00:02:29

passed #125588
docker linux amd64
respdiff:iter:udp:linux:amd64

00:02:25

passed #125582
docker linux amd64
test:linux:amd64

00:01:08

passed #125587
docker linux amd64
test:linux:amd64:valgrind

00:00:37

 
  Coverage
passed #125593
docker linux amd64
coverage

00:00:18

68.7%
 
Name Stage Failure
failed
lint:clang-scan-build Test
  CCLD	modules/stats/stats.so
CCLD modules/hints/hints.so
CCLD modules/cookies/cookies.so
scan-build: 22 bugs found.
scan-build: Run 'scan-view /builds/knot/knot-resolver/scan-results/2018-04-04-071224-13-1' to examine bug reports.
Uploading artifacts...
scan-results: found 27 matching files
Uploading artifacts to coordinator... ok
id=125581 responseStatus=201 Created token=Aax278zk
ERROR: Job failed: exit code 1