Update crashkernel-howto since crashkernel.default has been removed. The documentation is also simplified as a result. Reviewed-by: Pingfan Liu <piliu@redhat.com> Reviewed-by: Philipp Rudo <prudo@redhat.com> Signed-off-by: Coiby Xu <coxu@redhat.com>
Fix some grammar issues. Signed-off-by: Kairui Song <kasong@redhat.com>
Signed-off-by: Kairui Song <kasong@redhat.com> Acked-by: Baoquan He <bhe@redhat.com>