Adds working config and some data

Creates a working configuration for the site.
The writeups directory lists the different ctfs and each ctfs list every
challenge inside of it.
Also adds two ctfs to the writeups used to setup the site.

layouts/writeups/li.html

@@ -0,0 +1,4 @@
+<li>
+  <span class="date">{{ .Date | time.Format (.Site.Params.dateFormat | default "January 2, 2006" ) }}</span>
+  <a class="title" href="{{ .Params.externalLink | default .RelPermalink }}">{{ .Title }}</a>
+</li>