Add example site.

* .gitignore: Ignore example build artifacts.
* example/haunt.scm: New file.
* example/posts/foo.sxml: New file.
* example/posts/bar.html: New file.

.gitignore

@@ -11,3 +11,4 @@
 *~
 .#*
 /haunt/config.scm
+/example/site/

example/haunt.scm

@@ -0,0 +1,15 @@
+(use-modules (haunt site)
+             (haunt reader)
+             (haunt builder blog)
+             (haunt builder atom)
+             (srfi srfi-19))
+
+(site #:title "Built with Guile"
+      #:domain "dthompson.us"
+      #:default-metadata
+      '((author . "David Thompson")
+        (email  . "davet@gnu.org"))
+      #:readers (list sxml-reader html-reader)
+      #:builders (list (blog)
+                       (atom-feed)
+                       (atom-feeds-by-tag)))

example/posts/bar.html

@@ -0,0 +1,8 @@
+title: A Foo Walks Into a Bar
+date: 2015-04-11 20:00
+tags: bar
+---
+<p>
+  This is an example using raw HTML, because Guile doesn't have a
+  Markdown parser.
+</p>

example/posts/foo.sxml

@@ -0,0 +1,22 @@
+(use-modules (srfi srfi-41)
+             (haunt utils))
+
+(define fib
+  (stream-cons 0 (stream-cons 1 (stream-map + fib (stream-cdr fib)))))
+
+(define count 20)
+
+`((title . "Hello, world!")
+  (date . ,(string->date* "2015-04-10 23:00"))
+  (tags "foo" "bar")
+  (summary . "Just a test")
+  (content
+   ((h2 "What is this thing?")
+    (p "This is Haunt.  A static site generator for GNU Guile.")
+    (p "SXML is cool because you can evaluate Scheme code in your blog
+posts.  Here are the first "
+       ,count
+       " fibonacci numbers, computed with SRFI-41!")
+    (pre ,(object->string
+           (stream->list
+            (stream-take count fib)))))))