fix blockquote leak

without this fix when the `.Summary` ends with blockquote it endsup
swallowing next post as a part of blockquote formatting

gohugoio/hugo#14044
gohugoio/hugo#14045 (comment)
https://github.com/gohugoio/hugoDocs/pull/3230/files#diff-c06d7c00c7939481d14a2b74f72844be2e3759fdba9271e61f4f3a78ae6c7524R82-R83

Author: imomaliev

theme/layouts/home.html

@@ -1,7 +1,9 @@
 {{ define "main" }}
   {{ .Content }}
   {{ range site.RegularPages }}
-    <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
-    {{ .Summary }}
+    <article>
+      <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
+      {{ .Summary }}
+    </article>
   {{ end }}
 {{ end }}

theme/layouts/section.html

@@ -2,7 +2,9 @@
   <h1>{{ .Title }}</h1>
   {{ .Content }}
   {{ range .Pages }}
-    <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
-    {{ .Summary }}
+    <article>
+      <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
+      {{ .Summary }}
+    </article>
   {{ end }}
 {{ end }}