avoid .rst link conflict warnings

specification/index.rst

@@ -187,7 +187,7 @@ allocated the account and has the form::
 
   @localpart:domain
 
-See the `appendices <appendices.html#identifier-grammar>`_ for full details of
+See `'Identifier Grammar' the appendices <appendices.html#identifier-grammar>`_ for full details of
 the structure of user IDs.
 
 Devices
@@ -271,7 +271,7 @@ There is exactly one room ID for each room. Whilst the room ID does contain a
 domain, it is simply for globally namespacing room IDs. The room does NOT
 reside on the domain specified.
 
-See the `appendices <appendices.html#identifier-grammar>`_ for full details of
+See `'Identifier Grammar' in the appendices <appendices.html#identifier-grammar>`_ for full details of
 the structure of a room ID.
 
 The following conceptual diagram shows an
@@ -347,7 +347,7 @@ Each room can also have multiple "Room Aliases", which look like::
 
   #room_alias:domain
 
-See the `appendices <appendices.html#identifier-grammar>`_ for full details of
+See `'Identifier Grammar' in the appendices <appendices.html#identifier-grammar>`_ for full details of
 the structure of a room alias.
 
 A room alias "points" to a room ID and is the human-readable label by which