diff --git a/README.md b/README.md
index ec603ec..8957dff 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,4 @@ LNURL is a range of lightning-network standards that allow us to use lightning-n
 3. Optional - add Lightning Address
    - attach a username to your lnurlp to create a lightning address
    - the LN address format will be username@lnbits-domain-name
+   - Find out more about the lightning address spec at lightningaddress.com