merge master and move code as needed

src/settings.js

@@ -1,22 +1,34 @@
-// time in ms to wait between requesting image files
-// increase this if you see timeouts or server errors
+// Which fields to include in frontmatter. Look in /src/frontmatter to see available fields.
+// Order is preserved. If a field has an empty value, it will not be included. You can rename a
+// field by providing an alias after a ':'. For example, 'date:created' will include 'date' in
+// frontmatter, but renamed to 'created'.
+exports.frontmatter_fields = [
+	'title',
+	'date',
+	'categories',
+	'tags',
+	'coverImage'
+];
+
+// Time in ms to wait between requesting image files. Increase this if you see timeouts or
+// server errors.
 exports.image_file_request_delay = 500;
 
-// time in ms to wait between saving Markdown files
-// increase this if your file system becomes overloaded
+// Time in ms to wait between saving Markdown files. Increase this if your file system becomes
+// overloaded.
 exports.markdown_file_write_delay = 25;
 
-// enable this to include time with post dates
-// for example, "2020-12-25" would become "2020-12-25T11:20:35.000Z"
+// Enable this to include time with post dates. For example, "2020-12-25" would become
+// "2020-12-25T11:20:35.000Z".
 exports.include_time_with_date = false;
 
-// override post date formatting with a custom formatting string (for example: 'yyyy LLL dd')
-// tokens are documented here: https://moment.github.io/luxon/docs/manual/formatting.html#table-of-tokens
-// if set, this takes precedence over include_time_with_date
+// Override post date formatting with a custom formatting string (for example: 'yyyy LLL dd').
+// Tokens are documented here: https://moment.github.io/luxon/#/parsing?id=table-of-tokens. If
+// set, this takes precedence over include_time_with_date.
 exports.custom_date_formatting = '';
 
-// categories to be excluded from post frontmatter
-// this does not filter out posts themselves, just the categories listed in their frontmatter
+// Categories to be excluded from post frontmatter. This does not filter out posts themselves,
+// just the categories listed in their frontmatter.
 exports.filter_categories = ['uncategorized'];
 
 // override date timezone