README: add a note on RTFM

diff --git a/README.md b/README.md
index 9701258e4e4c7e49c85ca3728e694b30a2a4f923..987d27aa9401ab94880bef348e997fe1c702c9b7 100644 (file)
--- a/README.md
+++ b/README.md
@@ -1,4 +1,20 @@
 # pihpsdr
+
+Fork of John Melton G0ORX's pihpsdr.
+
+## Related repositories
+
+* [Radioberry controller firmware](https://github.com/vu3rdd/rb_controller)
+* [R-Pi4 configuration files for the controller hardware](https://github.com/vu3rdd/radioberry-controller-pi-config)
+
+## IMPORTANT
+
+If you encounter any error, copy the error and paste it into your
+favourite search engine and try to understand the problem. Ham radio
+is all about experimentation and self education.
+
+## Original readme
+
 Raspberry Pi 3/4 standalone code for HPSDR
 
 Supports both the old and new ethernet protocols.