[PATCH 2/5] doc: glossary: update per-worktree refs

[Andy Koppe <andy.koppe@gmail.com>]

The "per-worktree ref" entry says that these are only HEAD and refs
under "refs/bisect/", but that has been out of date since a9be29c981
(sequencer: make refs generated by the `label` command worktree-local,
2018-04-25). All root refs are per-worktree, as are refs under
"refs/worktree/" and "refs/rewritten/". Pseudorefs are specific to each
worktree too.

Bring the list up to date, and refer to git-worktree(1) for how to
access per-worktree refs of other worktrees. In the "worktree" entry,
describe HEAD as a per-worktree ref and MERGE_HEAD as a pseudoref,
rather than listing them separately from per-worktree refs.

Signed-off-by: Andy Koppe <andy.koppe@gmail.com>
---
 Documentation/glossary-content.adoc | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/Documentation/glossary-content.adoc b/Documentation/glossary-content.adoc
index b2c582254b..eff6d23215 100644
--- a/Documentation/glossary-content.adoc
+++ b/Documentation/glossary-content.adoc
@@ -494,10 +494,16 @@ exclude;;
 	interface than the <<def_plumbing,plumbing>>.
 
 [[def_per_worktree_ref]]per-worktree ref::
-	Refs that are per-<<def_worktree,worktree>>, rather than
-	global.  This is presently only <<def_HEAD,HEAD>> and any refs
-	that start with `refs/bisect/`, but might later include other
-	unusual refs.
+	A <<def_ref,ref>> that is specific to a <<def_worktree,worktree>>,
+	rather than shared between all worktrees. All
+	<<def_root_ref,root refs>>, such as <<def_HEAD,HEAD>>, are
+	per-worktree, as are refs that start with `refs/bisect/`,
+	`refs/worktree/` or `refs/rewritten/`.
++
+<<def_pseudoref,Pseudorefs>> are also specific to each worktree.
++
+See "REFS" in linkgit:git-worktree[1] for how to access the
+per-worktree refs of other worktrees.
 
 [[def_pseudoref]]pseudoref::
 	A name that can be used like a <<def_ref,ref>> to refer to
@@ -788,5 +794,5 @@ and pseudorefs.
 	"working tree" and repository metadata, most of which are
 	shared among other worktrees of a single repository, and
 	some of which are maintained separately per worktree
-	(e.g. the index, HEAD and pseudorefs like MERGE_HEAD,
-	per-worktree refs and per-worktree configuration file).
+	(e.g. the index, per-worktree refs such as HEAD, pseudorefs
+	such as MERGE_HEAD, and the per-worktree configuration file).
-- 
2.56.0