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, 2 insertions, 3 deletions

@@ -37,9 +37,8 @@
             
                     </header>
 
-        <section class="content verse">
-            <p>The self is a serengeti<br />a wide grassland with baobab trees<br />reaching their roots deep into earth<br />like a child into a clay pot<br />A wind blows there or seems to blow<br />if he holds it up to his ear the air shifts<br />like stones in a stream uncovering a crawfish<br />it finds another hiding place watching you<br />Its eyes are blacker than wind<br />on the serengeti they are the <a href="onformalpoetry.html">eyes of a predator</a><br />they are coming toward you or receding<br />a storm cloud builds on the horizon<br />Are you <a href="squirrel.html">running</a> toward the rain or away from it<br />Do you stand still and crouch hoping for silence</p>
-        </section>
+        
+        <section class="content verse"><p>The self is a serengeti<br />a wide grassland with baobab trees<br />reaching their roots deep into earth<br />like a child into a clay pot<br />A wind blows there or seems to blow<br />if he holds it up to his ear the air shifts<br />like stones in a stream uncovering a crawfish<br />it finds another hiding place watching you<br />Its eyes are blacker than wind<br />on the serengeti they are the <a href="onformalpoetry.html">eyes of a predator</a><br />they are coming toward you or receding<br />a storm cloud builds on the horizon<br />Are you <a href="squirrel.html">running</a> toward the rain or away from it<br />Do you stand still and crouch hoping for silence</p></section>
     </article>
     <nav>
                 <a class="prevlink" href="mountain.html"