Add Health Page (#19)

* Change Videos page to Media.

* Add page for My Health Ptorocol.

* Add placeholder with basic layout for future lists page.

* Little more work on the book links.

* Be consistent with sentences.

* Add a link to the GitHub project.

* Change filename, add TBD's.

* Add a note about the new eBook.

pages/subpages/about/health.php

@@ -4,6 +4,10 @@
 		</div>
 		<div class="row">
 			<div class="col-12 text">
+				<p>
+					I've written an eBook with the same title! Find it
+					<a href="/health/">here</a>.
+				</p>
 				<p>
 					I have not been sick since I cleaned up my lifestyle in 2014. No colds,
 					flus, fevers, etc. My suggestions for accomplishing this are simple.