Asciidoc may fail to render link attributes for external links
supposed to open in a new window correctly. This change adds
:linkattrs: to the beginning of such files to force parsing link
attributes correctly.
Bug: Issue 12068
Change-Id: If18be60de646ff78f672239dd4fa435fd4fd92ab
To make it easier to stay on track when reading documentation, I
added ",role=external,window=_blank" to all links in the
documentation directory that were not pointing at another piece of documentation.
Change-Id: I94bf254c90f8ebce067c765be0a2932b755a045a