Project reorganization, add editorconfig and linter

src/components/d-appendix.js

@@ -0,0 +1,30 @@
+import { Template } from "../mixins/template";
+import { page } from "../helpers/layout";
+
+const T = Template("d-appendix", `
+<style>
+
+:host {
+  display: block;
+  font-size: 13px;
+  line-height: 1.7em;
+  margin-bottom: 0;
+  border-top: 1px solid rgba(0,0,0,0.1);
+  color: rgba(0,0,0,0.5);
+  background: rgb(250, 250, 250);
+  padding-top: 36px;
+  padding-bottom: 48px;
+}
+
+${page(".l-body")}
+
+</style>
+
+<div class="l-body">
+  <slot></slot>
+</div>
+`);
+
+export class Appendix extends T(HTMLElement) {
+
+}