more info
diff --git a/examples/README b/examples/README
index ec867b2..58c58d2 100644
--- a/examples/README
+++ b/examples/README
@@ -1,5 +1,10 @@
-This directory contains several convertors from known text formats into
-the ASN.1 specifications, as well as examples of these formats and the
-sample convertor's output.
+This directory contains several convertors from a few known text formats into
+the ASN.1 modules, as well as examples of these formats and the sample
+convertor's output (generated by `make`).
+To regenerate the .asn1 files, do `rm *.asn1; make`.
+
+To compile the files using asn1c, try
+
+ ../asn1c/asn1c -P rfc3280-*.asn1