checkpoint initial inc content

Details of how this content will be used is found in part,
in the `/inc/README.md` file and in part in the tools that
will use this content.

The content of this directory will likely change soon.
This content is a placeholder.

inc/before-content.default.html

@@ -0,0 +1,5 @@
+<!-- START: this line start content from: /inc/before-content.default.html -->
+
+    <a name="content"></a>
+
+<!-- END: this line ends content from: /inc/before-content.default.html -->