quick writeup

README

@@ -24,6 +24,22 @@ And create a JSON output in your theme folder called index.json:
 {{- $.Scratch.Get "index" | jsonify -}}
 ```
 
+The json format should be like this:
+```
+[
+	{
+		"body": "Textual contents of item 1",
+		"title": "Item 1",
+		"uri": "/items/1"
+	},
+	{
+		"body": "Textual contents of item 2",
+		"title": "Item 2",
+		"uri": "/items/2"
+	},
+]
+```
+
 This removes a bit of formatting too agressively but alas.
 
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