Related to: - https://review.opendev.org/#/c/723044/ - https://governance.openstack.org/tc/goals/selected/ussuri/project-ptl-and-contrib-docs.html Change-Id: I3e8abdc0f8c4368b2c205f93f714a01cbb5a856e
Minor formatting improvements found during the document check are also done. Change-Id: I55d582100c40961a5b0f5ec4b2ea9a55f2d8d8a1