Update outdated files in dev-1.14-ko.2 partly-concepts-contribute-ref

[seokho-son]

Fixes partly #13738.

This PR covers all outdated files in docs/concepts, docs/contribute, and docs/reference.

docs/concepts/configuration/scheduler-perf-tuning.md 1 file changed, 38 insertions(+), 34 deletions(-)

docs/concepts/overview/kubernetes-api.md 1 file changed, 4 insertions(+), 4 deletions(-)
docs/concepts/overview/object-management-kubectl/overview.md 1 file changed, 3 insertions(+), 1 deletion(-)
docs/concepts/overview/working-with-objects/kubernetes-objects.md 1 file changed, 2 insertions(+), 2 deletions(-)

docs/concepts/workloads/pods/pod-lifecycle.md 1 file changed, 2 insertions(+), 2 deletions(-)
docs/concepts/workloads/pods/pod-overview.md 1 file changed, 1 insertion(+), 1 deletion(-)
docs/contribute/_index.md 1 file changed, 1 insertion(+), 1 deletion(-)
docs/reference/_index.md 1 file changed, 2 insertions(+), 2 deletions(-)
docs/reference/glossary/device-plugin.md 1 file changed, 2 insertions(+), 2 deletions(-)
docs/reference/glossary/extensions.md 1 file changed, 2 insertions(+), 2 deletions(-)
docs/reference/glossary/pod-lifecycle.md 1 file changed, 7 insertions(+), 4 deletions(-)
docs/reference/glossary/replica-set.md 1 file changed, 1 insertion(+), 2 deletions(-)
docs/reference/glossary/taint.md 1 file changed, 4 insertions(+), 4 deletions(-)
docs/reference/glossary/toleration.md 1 file changed, 4 insertions(+), 4 deletions(-)
docs/reference/kubectl/cheatsheet.md 1 file changed, 21 insertions(+), 9 deletions(-)

/language ko

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[gochist]

/assign

[gochist]

@seokho-son 감사합니다!
/lgtm
/approve

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