rss description should be post body

src/index.html

@@ -1,5 +1,5 @@
 ---
-description: "This is me saying hello to the world"
+desc: "This is me saying hello to the world"
 image: "./images/robert-pearce-UwHN0jU_YqQ-unsplash-800w.jpg"
 lang: "en"
 stylesheet: "default"

src/posts/2020-09-21-hello-world.md

@@ -1,7 +1,7 @@
 ---
 author: "My name"
 authorTwitter: "@MyName"
-description: "I announce myself to the world"
+desc: "I announce myself to the world"
 image: "./images/waiheke-stony-batter.jpg"
 keywords: "hello, announcement"
 lang: "en"

src/posts/2020-09-22-hola-mundo.md

@@ -1,7 +1,7 @@
 ---
 author: "Mi nombre"
 authorTwitter: "@MiNombre"
-description: "Me anuncio al mundo"
+desc: "Me anuncio al mundo"
 image: "./images/waiheke-stony-batter.jpg"
 keywords: "hola, anuncio"
 lang: "es"

src/templates/default.html

@@ -5,7 +5,7 @@
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="$description$">
+    <meta name="description" content="$desc$">
     $if(author)$
     <meta name="author" content="$author$">
     $endif$
@@ -16,7 +16,7 @@
     <meta property="og:site_name" content="$siteName$">
     <meta property="og:title" content="$title$">
     <meta property="og:url" content="$root$$url$">
-    <meta property="og:description" content="$description$">
+    <meta property="og:description" content="$desc$">
     $if(image)$
     <meta property="og:image" content="$root$$image$">
     $endif$
@@ -29,7 +29,7 @@
     <meta property="twitter:card" content="summary_large_image">
     <meta property="twitter:site" content="$siteName$">
     <meta property="twitter:title" content="$title$">
-    <meta property="twitter:description" content="$description$">
+    <meta property="twitter:description" content="$desc$">
     $if(image)$
     <meta property="twitter:image" content="$root$$image$">
     $endif$