The brief list given in "Symbolic Identifiers" section of the
main documentation is good enough for overview, but help the
reader to find a more comrehensive list as needed.
Signed-off-by: Junio C Hamano <junkio@cox.net>
a valid head 'name'
(i.e. the contents of `$GIT_DIR/refs/heads/<head>`).
+For a more complete list of ways to spell object names, see
+"SPECIFYING REVISIONS" section in gitlink:git-rev-parse[1].
+
File/Directory Structure
------------------------