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>Swans fly overhead singing goodbye<br />to we <a href="howithappened.html">walkers of the earth</a>. You point<br />to them in formation, you tell me<br />you are not you. <a href="swansong-alt.html">You are the air the swans<br />walk on</a> as they journey like pilgrims<br />to a temple in the south. A curtain<br />there separates me from you, swans<br />from the air they fly through. I say<br />that you are no longer the temple,<br />that you have been through fire<br />and are now less than ash. You are<br />a <a href="moongone.html">mirror</a> of me, the <a href="deathstrumpet.html">air without a swan</a>.<br />Together, we are each other. You<br />and I have both nothing and everything<br />at once. We own the world and nothing in it.</p>
-        </section>
+        
+        <section class="content verse"><p>Swans fly overhead singing goodbye<br />to we <a href="howithappened.html">walkers of the earth</a>. You point<br />to them in formation, you tell me<br />you are not you. <a href="swansong-alt.html">You are the air the swans<br />walk on</a> as they journey like pilgrims<br />to a temple in the south. A curtain<br />there separates me from you, swans<br />from the air they fly through. I say<br />that you are no longer the temple,<br />that you have been through fire<br />and are now less than ash. You are<br />a <a href="moongone.html">mirror</a> of me, the <a href="deathstrumpet.html">air without a swan</a>.<br />Together, we are each other. You<br />and I have both nothing and everything<br />at once. We own the world and nothing in it.</p></section>
     </article>
     <nav>
                 <a class="prevlink" href="squirrel.html"