Move from atom.xml to feed.xml for tech agnostic-ish filename.

_data/metadata.json

@@ -3,8 +3,9 @@
 	"url": "https://myurl.com/",
 	"feed": {
 		"subtitle": "I am writing about my experiences as a naval navel-gazer.",
-		"path": "feed/atom.xml",
-		"url": "https://myurl.com/feed/atom.xml",
+		"filename": "feed.xml",
+		"path": "feed/feed.xml",
+		"url": "https://myurl.com/feed/feed.xml",
 		"id": "https://myurl.com/"
 	},
 	"author": {

feed/feed.njk

@@ -1,5 +1,5 @@
 ---
-permalink: feed/atom.xml
+permalink: feed/feed.xml
 ---
 <?xml version="1.0" encoding="utf-8"?>
 <feed xmlns="http://www.w3.org/2005/Atom">

feed/htaccess.njk

@@ -1,5 +1,5 @@
 ---
 permalink: feed/.htaccess
 ---
-# For Apache, to show `atom.xml` when browsing to directory /feed/ (hide the file!)
-DirectoryIndex atom.xml
+# For Apache, to show `{{ metadata.feed.filename }}` when browsing to directory /feed/ (hide the file!)
+DirectoryIndex {{ metadata.feed.filename }}