Merge e8423193d4 into 8a2c58b1b1

* Typo "not" -> "no"

Signed-off-by: Andy Balaam <andy.balaam@matrix.org>

---------

Signed-off-by: Andy Balaam <andy.balaam@matrix.org>

changelogs/client_server/newsfragments/2101.clarification

@@ -0,0 +1 @@
+"Public" rooms in profile look-ups are defined through their join rule and history visibility.

changelogs/client_server/newsfragments/2121.clarification

@@ -0,0 +1 @@
+Fix various typos throughout the specification.

content/client-server-api/_index.md

@@ -2847,10 +2847,15 @@ re-invited.
 
 #### Server behaviour
 
-Homeservers MUST at a minimum allow profile look-up for:
+Homeservers MUST at a minimum allow profile look-up for users who are
+visible to the requester based on their membership in rooms known to the
+homeserver. This means:
 
 -   users that share a room with the requesting user
--   users that reside in public rooms known to the homeserver
+-   users who are joined to rooms known to the homeserver that have a
+    `public` [join rule](#mroomjoin_rules)
+-   users who are joined to rooms known to the homeserver that have a
+    `world_readable` [history visibility](#room-history-visibility)
 
 In all other cases, homeservers MAY deny profile look-up by responding with
 403 and an error code of `M_FORBIDDEN`.

content/client-server-api/modules/secrets.md

@@ -58,7 +58,7 @@ available on all their clients. Unless the user specifies otherwise,
 clients will try to use the default key to decrypt secrets.
 
 Clients that want to present a simplified interface to users by not supporting
-multiple keys should use the default key if one is specified. If not default
+multiple keys should use the default key if one is specified. If no default
 key is specified, the client may behave as if there is no key is present at
 all. When such a client creates a key, it should mark that key as being the
 default key.