Add a pending test for issue #64 (nested lists with a single item)

spec/block_docs/issue64.md

@@ -0,0 +1,41 @@
+PENDING - Nested list with a single item. https://github.com/bhollis/maruku/issues/64
+*** Parameters: ***
+{}
+*** Markdown input: ***
+A nested list with a single item (does not work)
+
+- three items:
+  - item 1
+  - item 2
+  - item 3
+- one item:
+  - item
+- two items:
+  - item a
+  - item b
+
+*** Output of inspect ***
+
+*** Output of to_html ***
+<p>A nested list with a single item (does not work)</p>
+
+<ul>
+<li>three items:
+
+<ul>
+<li>item 1</li>
+<li>item 2</li>
+<li>item 3</li>
+</ul></li>
+<li>one item:
+
+<ul>
+<li>item</li>
+</ul></li>
+<li>two items:
+
+<ul>
+<li>item a</li>
+<li>item b</li>
+</ul></li>
+</ul>