Fix #9 - ekphrastisize some poems

For ekphrastic articles, add `ekphrastic` node to YAML metadata.
This node includes subnodes `image`, `title`, `alt`, `link`, and `class`.
`image` provides a link to the local image--just include the file name
with the extension, not the folder (all images should be in /img/.)
`title` provides the title of the image, and the alt-text, if there
is no `alt` node.
`alt`, if it exists, provides the alt text for the image.
`link`, if present, wraps the image in an `<a>` tag--it should point
to the source web page of the ekphrastic image.
`class`, if present, sets the class(es) for the image, for styling.

In this commit, I've set `ekphrastic` on the four articles that have
them so far: 'The Death Zone,' 'AMBER alert,' 'The moon is gone,' and
'Man.' I've also updated .template.html with the changes, and updated
README.md to reflect the changes in YAML structure.

1 files changed, 5 insertions, 2 deletions

@@ -6,6 +6,11 @@ epigraph:
     content: Apparently it does nothing.
     link: 'http://www.boston.com/bostonglobe/ideas/articles/2008/07/20/abducted/?page=full'
 
+ekphrastic:
+    image: amber.jpg
+    title: Amber Hagerman
+    link: 'https://en.wikipedia.org/wiki/AMBER_alert'
+
 project:
     title: Stark Raving
     css: stark
@@ -28,8 +33,6 @@ Maybe the lost *want* to be found but we're looking in the wrong places.
 Maybe we speak the wrong language, the language of the found, to call to them.
 Maybe we should [try another door][].
 
-![Amber Hagerman](https://upload.wikimedia.org/wikipedia/en/5/54/Amber_Hagerman.jpg)
-
 [Lost things]: lappel-du-vide
 [staying lost]: http://www.poetryfoundation.org/poem/176996
 [try another door]: statements-frag.html