diff --git a/doc/Readme.md b/doc/Readme.md
index 5e94f009..d61be98b 100644
--- a/doc/Readme.md
+++ b/doc/Readme.md
@@ -1 +1,7 @@
-photo jawbreaker-fd0-145436.jpeg by fd0 from https://github.com/fd0/jawbreaker-pictures
+The primary source of documentation is the wiki on github:
+
+https://github.com/mossmann/hackrf/wiki
+
+This directory contains supplemental documentation.
+
+(photo jawbreaker-fd0-145436.jpeg by fd0 from https://github.com/fd0/jawbreaker-pictures)