Simplify language

specification/modules/third_party_invites.rst

@@ -36,8 +36,8 @@ A client asks a server to invite a user by their third party identifier.
 Server behaviour
 ----------------
 
-All homeservers MUST verify the signature in the ``signed`` property of the
-``third_party_invite`` property in the ``content`` the event.
+All homeservers MUST verify the signature in the event's
+``content.third_party_invite.signed`` object.
 
 If a client of the current homeserver is joining by an
 ``m.room.third_party_invite``, that homesever MUST validate that the public
@@ -94,9 +94,8 @@ For example:
     When the third party user validates their identity, they are told about the
     invite, and ask their homeserver, H3, to join the room.
 
-    H3 validates that signature in the ``signed`` property of the
-    ``third_party_invite`` property of the ``content`` property of the  event,
-    and may check ``key_validity_url``.
+    H3 validates the signature in the event's
+    ``content.third_party_invite.signed`` object.
 
     H3 then asks H1 to join it to the room. H1 *must* validate the ``signed``
     property *and* check ``key_validity_url``.