Add implementationReportURI and CR criteria (#312)

Co-authored-by: Anssi Kostiainen <anssi.kostiainen@intel.com>

Author: himorin

index.html

@@ -73,7 +73,8 @@
         "permissions-policy", "hr-time", "picture-in-picture", "mediacapture-streams"
       ]
     },
-    preProcess: [experimentalPreProcess]
+    preProcess: [experimentalPreProcess],
+    implementationReportURI: "https://wpt.fyi/results/compute-pressure"
   };
 </script>
 <style>
@@ -107,7 +108,12 @@
     resources for an improved user experience.
   </p>
 </section>
-<section id="sotd"></section>
+<section id="sotd">
+  <p>
+    For this specification to exit the CR stage,
+    at least 2 independent implementations of every feature defined in this specification need to be documented in the implementation report.
+  </p>
+</section>
 <section class="informative">
   <h2>Introduction</h2>
   <p>