documentation: fix a number of typos

24 jobs for codespell in 22 minutes and 9 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Preparation
passed #599969
gst indent

00:00:31

passed #599968
manifest

00:00:41

 
  Build
passed #599979
build cerbero cross-android universal

00:11:33

manual #599983
gst-ios-12.2 allowed to fail manual
build cerbero cross-ios universal
passed #599980
build cerbero cross win32

00:07:09

passed #599981
build cerbero cross win64

00:07:35

passed #599978
build cerbero fedora x86_64

00:07:11

passed #599982
gst-macos-10.14
build cerbero macos x86_64

00:07:14

passed #599974
build clang fedora x86_64

00:06:36

passed #599970
build fedora x86_64

00:05:57

passed #599977
docker windows 1607
build msys2

00:10:49

passed #599971
build nodebug fedora x86_64

00:04:15

passed #599972
build static fedora x86_64

00:12:31

passed #599973
build static nodebug fedora x86_64

00:03:53

failed #599975
docker windows 1607
build vs2017 amd64

00:00:07

passed #599976
docker windows 1607
build vs2017 x86

00:09:35

 
  Test
passed #599984
check fedora

00:03:44

passed #599985
integration testsuites fedora

00:12:19

passed #599987
valgrind bad

00:09:12

passed #599988
valgrind ges

00:08:49

passed #599986
valgrind good

00:11:30

 
  Integrate
passed #599989
cross-android universal examples

00:06:53

skipped #599991
gst-ios-12.2 allowed to fail manual
cross-ios universal examples
passed #599990
documentation

00:04:04

 
Name Stage Failure
failed
build vs2017 amd64 Build There has been a runner system failure, please try again
  on gst-windows-2016-1607 9rgQmETr
Using Docker executor with image registry.freedesktop.org/gstreamer/gst-ci/amd64/windows:v6 ...
Using locally found image version due to if-not-present pull policy
Using docker image sha256:96a59ae1e07da95788be93b397bbb3764bf262ef59cdc867f05e9c0cb122a3c3 for registry.freedesktop.org/gstreamer/gst-ci/amd64/windows-gitlab-runner-helper-2016:v1 ...
Using locally found image version due to if-not-present pull policy
Using docker image sha256:d0c45a4bca114e5380e2af6b767fc458351073f4d681f3b3ee20647d39f905c2 for registry.freedesktop.org/gstreamer/gst-ci/amd64/windows:v6 ...
Running on RUNNER-9RGQMETR via
WIN-A8AOFJVU50C...
ERROR: Job failed (system failure): Error response from daemon: Conflict. The container name "/runner-9rgQmETr-project-2182-concurrent-0-predefined-1" is already in use by container "25b2e68afc8863aa8fae3b53521544e5f8121107676c99c681a91bf20cc5185a". You have to remove (or rename) that container to be able to reuse that name.