remove sub module theme and add our own theme

themes/tse/layouts/_default/single.html

@@ -0,0 +1,15 @@
+{{ define "main" }}
+  <main class="content page-template page-{{ .Slug }}">
+    <article class="post page">
+      <header class="post-header">
+        {{ with .Parent }}
+        <a id="back-to-main-page" href="{{ .RelPermalink | relLangURL }}"><i class="fa fa-chevron-left" aria-hidden="true"></i> {{ or .Title .Site.Title }}</a>
+        {{ end }}
+      </header>
+      <h1 class="post-title">{{ .Title }}</h1>
+      <section class="post-content">
+        {{ .Content }}
+      </section>
+    </article>
+  </main>
+{{ end }}