diff --git a/registry/README.md b/registry/README.md
index 0c3f46c7..2312e7e1 100644
--- a/registry/README.md
+++ b/registry/README.md
@@ -22,6 +22,11 @@ Extract pem certificates from ldif file:
 ts-node src/dsc/extract_certificates.ts
 ```
 
+Extract pem to txt:
+```
+ts-node src/dsc/pem_to_txt.ts
+```
+
 Extract readable public keys from pem certicates:
 ```
 ts-node src/dsc/extract_pubkeys.ts