Support xref aka cross reference link fix in adoc#649

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georgecao wants to merge 6 commits intojbake-org:masterfrom georgecao:ru

Commits on Jun 15, 2020

Fix tag <a href='../path' /> url
georgecao
committed

Commits on May 18, 2021

Commits on May 24, 2021

Commits on May 25, 2021

Merge from remote reop and resolve conflicts
georgecao
committed