update CEWA post with a meta desc, and fix logic for OG thumbnail

_includes/layouts/layout.njk

@@ -10,7 +10,7 @@
     <meta name="Description" content="{{ renderData.description or description or metadata.description or page.description }}">
 
     <meta property="og:type" content="{%  if metadata.type %}{{ metadata.type }}{% elif metadata.layout == "post" or metadata.layout == "photos" %}article{% else %}website{% endif %}">
-    <meta property="og:image" content="{% if page.photos %}{{ page.photos[0].file | thumbnail }}{% else %}https://www.nthall.com/img/thumbs/noah-thumb.jpg{% endif %}">
+    <meta property="og:image" content="{% if photos %}{{ photos[0].file | thumbnail }}{% else %}https://www.nthall.com/img/thumbs/noah-thumb.jpg{% endif %}">
     <meta property="og:url" content="https://www.nthall.com{{ page.url | url }}">
     <meta property="og:title" content="{% if title %}{{ title }} | {% endif %} Noah Hall">
     <meta property="og:description" content="{{ renderData.description or description or metadata.description }}">

photos/fall_colors_cewas.md

@@ -1,9 +1,11 @@
 ---
 title: Fall Colors
 date: 2020-11-08
+description: The brightest red and yellow I've seen on a maple tree this fall came not from leaves, but from Cedar Waxwings.
 tags:
     - birds
 layout: photos
+
 photos:
   0:
     file: "/img/2020_cewa1.jpg"