create/skeletons: Wrap section and home lists with section tags

Avoiding issues with tag leakage when using .Summary
See issue #14044 for details.

Author: imomaliev

create/skeletons/theme/layouts/home.html

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

create/skeletons/theme/layouts/section.html

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