fix build

spec.bs

@@ -2827,7 +2827,7 @@ a [=list=] of [=interest groups=] |bidIgs|, and a [=list=] of [=bid debug report
   : [=generated bid/ad=]
   :: |response|'s [=server auction response/ad metadata=]
   : [=generated bid/ad descriptor=]
-  :: |winningAd|
+  :: |winningAdDescriptor|
   : [=generated bid/ad component descriptors=]
   :: |winningAdComponents|
   : [=generated bid/ad cost=]
@@ -3073,7 +3073,7 @@ A <dfn>server auction response</dfn> is a [=struct=] with the following [=struct
   :: An [=origin=] or Null. Null when the server response is not feeding into an
      on-device auction. Otherwise the value is the expected top-level seller for
      that auction.
-  : ad metadata
+  : <dfn>ad metadata</dfn>
   :: A JSON [=string=] or Null. Null when the server response is not feeding into an
      on-device auction. Otherwise the value contains the ad metadata
      returned from scoring the winning bid in the component auction.