docs: autoreveal the body on docs pages

Author: bennypowers

core/pfe-core/core.ts

@@ -90,7 +90,13 @@ const bodyNoAutoReveal = document.body.hasAttribute('no-auto-reveal');
 /** Global patternfly elements config */
 window.PfeConfig = Object.assign(window.PfeConfig ?? {}, {
   trackPerformance: window.PfeConfig?.trackPerformance ?? getMeta('pfe-track-performance') === 'true',
-  autoReveal: window.PfeConfig?.autoReveal ?? bodyNoAutoReveal ? !bodyNoAutoReveal : getMeta('pfe-auto-reveal') === 'true',
+  // if the body tag has `no-auto-reveal` attribute, reveal immediately
+  // if `<meta name="pfe-auto-reveal">` exists, and it's `content` is 'true',
+  // then auto-reveal the body
+  autoReveal: window.PfeConfig?.autoReveal ?? (
+      bodyNoAutoReveal ? !bodyNoAutoReveal
+    : getMeta('pfe-auto-reveal') === 'true'
+  ),
   get log() {
     return !!localStorage.pfeLog;
   },

docs/_includes/_head.njk

@@ -3,6 +3,7 @@
   <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
   <meta name="theme-color" content="#004080">
   <meta name="description" content="{{ title }} - PatternFly Elements">
+  <meta name="pfe-auto-reveal" content="true">
   <title>{{ element.title or title }} - PatternFly Elements</title>
   <link href="/brand/logo/svg/pfe-icon-blue.svg" rel="shortcut icon">