Update spec.bs

spec.bs

@@ -2961,20 +2961,24 @@ Structures", with the following content:
 <h3 id=direct-from-sellers-signals-key-struct>Direct from seller signals key</h3>
 A <dfn>direct from seller signals key</dfn> is a [=struct=] with the following [=struct/items=]:
 
+NOTE: This is only captured during a {{WindowOrWorkerGlobalScope/fetch()}} call with the
+`{adAuctionHeaders: true}` option.
+
 <dl dfn-for="direct from seller signals key">
 : <dfn>seller</dfn>
 :: An [=origin=]. Matches the origin that served the captured [:Ad-Auction-Signals:] header.
 : <dfn>ad slot</dfn>
 :: A [=string=]. Matches the `adSlot` key of the JSON dictionaries in the top-level array of the
   [:Ad-Auction-Signals:] value.
 
-NOTE: This is only captured during a {{WindowOrWorkerGlobalScope/fetch()}} call with the
-`{adAuctionHeaders: true}` option.
 </dl>
 
 <h3 id=direct-from-sellers-signals-struct>Direct from seller signals</h3>
 A <dfn>direct from seller signals</dfn> is a [=struct=] with the following [=struct/items=]:
 
+NOTE: This is only captured during a {{WindowOrWorkerGlobalScope/fetch()}} call with the
+`{adAuctionHeaders: true}` option.
+
 <dl dfn-for="direct from seller signals">
 : <dfn>seller signals</dfn>
 :: Null or a [=string=].
@@ -2987,8 +2991,6 @@ A <dfn>direct from seller signals</dfn> is a [=struct=] with the following [=str
   [=map/Keys=] are buyers and must be valid HTTPS origins. [=map/Values=] are opaque JSON data
   passed to corresponding buyer's [=script runner=].
 
-NOTE: This is only captured during a {{WindowOrWorkerGlobalScope/fetch()}} call with the
-`{adAuctionHeaders: true}` option.
 </dl>
 
 Each [=traversable navigable=] has a <dfn>captured ad auction headers</dfn>, which is a [=map=]