diff --git a/doc/README.txt b/doc/README.txt
index 0a12270aa..83a2f944e 100644
--- a/doc/README.txt
+++ b/doc/README.txt
@@ -1,6 +1,15 @@
 Dosage
-=======
+======
 
 Dosage is a comic strip downloader and archiver.
 
+Dosage is designed to keep a local copy of specific webcomics and other
+picture-based content such as Picture of the Day sites.  With the dosage
+commandline script you can get the latest strip of a webcomic, or catch-up to
+the last strip downloaded, or download a strip for a particular date/index (if
+the webcomic's site layout allows this).
+
+Multiple webcomics can be downloaded in parallel, making the update of comic
+strips faster.
+
 See http://dosage.rocks/ for more info.