Timestamp: Fix comments from rakuco's first review

Signed-off-by: Arnaud Mandy 

Author: arskama

index.html

@@ -1108,16 +1108,21 @@ Data delivery
         <li>
           Let |state:PressureState| be an [=adjusted pressure state=] given |data| and |source|.
         li>
-        <li>
-          Let |timestamp| be an platform-specific timestamp converted in an [=implementation-defined=]
-          way to an [=monotonic clock/unsafe current time=] using the same [=monotonic clock=]
-          that is shared by [=environment settings object/time origin=].
         <aside class="note">
           The |data| sample and mapping between |data| sample, and [=pressure states=],
           is [=implementation-defined=] and may use many different metrics. For instance,
           for CPU, it might consider processor frequency and utilization, as well
           as thermal conditions.
         aside>
+        <li>
+          Let |timestamp| be an platform-specific timestamp converted in an [=implementation-defined=]
+          way to an [=monotonic clock/unsafe current time=] using the same [=monotonic clock=]
+          that is shared by [=environment settings object/time origin=].
+        <aside class="note">
+            The goal of this step is to ensure that a timestamp that may have been relative to
+            a different time origin is converted to a value that can be used in computations with
+            the same [=monotonic clock=] used by the operations described in [[HR-TIME]].
+        aside>
         li>
         <li>
           [=list/For each=] |observer:PressureObserver| in |relevantGlobal|'s
@@ -1140,7 +1145,7 @@ Data delivery
               {{PressureRecord/[[Source]]}} set to |source|,
               {{PressureRecord/[[State]]}} set to |state|
               and {{PressureRecord/[[Time]]}} set to [=relative high resolution time=] based on |timestamp|
-              and a global.
+              and |relevantGlobal|.
             li>
             <li>
               If |observer|.{{PressureObserver/[[AfterPenaltyRecordMap]]}}[source] [=map/exists=]: