chore(cwv): add methodology (#277)

Co-authored-by: rf <rf@ryans-MacBook-Air.local>

Author: rdforte

packages/docs/src/components/CoreWebVitalsMethodologyNotes.astro

@@ -0,0 +1,14 @@
+---
+import MethodologyNotes from '../components/MethodologyNotes.astro'
+---
+
+<MethodologyNotes>
+  <li>
+    All Core Web Vitals for Desktop are sourced from <a
+      href="https://httparchive.org/reports/techreport/tech"
+      target="_blank"
+      rel="noopener noreferrer">HTTP Archive</a
+    >
+  </li>
+  <li>Metrics refresh monthly</li>
+</MethodologyNotes>

packages/docs/src/pages/run-time.astro

@@ -16,6 +16,7 @@ import SSRRequestThroughputStatsTable from '../components/SSRRequestThroughputSt
 import Layout from '../layouts/Layout.astro'
 import CoreWebVitalsTable from '../components/CoreWebVitalsTable.astro'
 import CoreWebVitalsCharts from '../components/CoreWebVitalsCharts.astro'
+import CoreWebVitalsMethodologyNotes from '../components/CoreWebVitalsMethodologyNotes.astro'
 ---
 
 <Layout>
@@ -42,4 +43,5 @@ import CoreWebVitalsCharts from '../components/CoreWebVitalsCharts.astro'
   <h2 id="server-side-load-test">Core Web Vitals Desktop</h2>
   <CoreWebVitalsCharts />
   <CoreWebVitalsTable />
+  <CoreWebVitalsMethodologyNotes />
 </Layout>