n/darkreader.md: note where the settings are, detecting existing dark theme & font

n/darkreader.md

@@ -7,5 +7,18 @@ sitemap: false
 The [Dark Reader](https://github.com/darkreader/darkreader) configuration I
 want in the new interface is:
 
+1. See all options
+1. Colors
+
 - Background: `#000000` ("AMOLED Black")
 - Text: `#ffb700` ("Amber")
+
+1. Font and more
+
+- Change font: yes
+- Font name: `OpenDyslexic` or `Comic Shanns Mono`
+  - This doesn't seem to work too great, so thus the
+    [OpenDyslexic extension](https://github.com/OpenDyslexic/extension)
+    which again is incompatible with font changing.
+
+In _Settings_ there is additionally _Detect dark theme_ option which is nice.