Merge pull request #1329 from matrix-org/rav/htmltest

Add link checker to CI

data/api/client-server/inviting.yaml

@@ -35,8 +35,8 @@ paths:
       description: |-
         *Note that there are two forms of this API, which are documented separately.
         This version of the API requires that the inviter knows the Matrix
-        identifier of the invitee. The other is documented in the*
-        [third party invites section](/client-server-api/#post_matrixclientv3roomsroomidinvite-1).
+        identifier of the invitee. The other is documented in the
+        [third party invites](/client-server-api/#third-party-invites) section.*
 
         This API invites a user to participate in a particular room.
         They do not start participating in the room until they actually join the

data/api/client-server/sync.yaml

@@ -383,7 +383,7 @@ paths:
                 type: object
                 description: |-
                   Information on end-to-end device updates, as specified in
-                  [End-to-end encryption](/client-server-api/#extensions-to-sync-1).
+                  [End-to-end encryption](/client-server-api/#e2e-extensions-to-sync).
               device_one_time_keys_count:
                 title: One-time keys count
                 type: object
@@ -391,7 +391,7 @@ paths:
                   type: integer
                 description: |-
                   Information on end-to-end encryption keys, as specified
-                  in [End-to-end encryption](/client-server-api/#extensions-to-sync-1).
+                  in [End-to-end encryption](/client-server-api/#e2e-extensions-to-sync).
             required:
               - next_batch
           examples:

data/event-schemas/schema/m.space.child.yaml

@@ -27,7 +27,7 @@ properties:
           `order` values with the wrong type, or otherwise invalid contents, are to be treated
           as though the `order` key was not provided.
 
-          See [Ordering](/client-server-api/#ordering-1) for information on how the ordering works.
+          See [Ordering of children within a space](/client-server-api/#ordering-of-children-within-a-space) for information on how the ordering works.
       suggested:
         type: boolean
         description: |-