diff --git a/serve.py b/serve.py
index a8fe294..abc24d3 100755
--- a/serve.py
+++ b/serve.py
@@ -47,6 +47,7 @@ def serve(root, port, run_browser):
 
     print(f"using {certfile} and {keyfile} for ssl")
     
+    # NOTE: read README.md for more instructions if you want a CA
     if os.path.exists(certfile) and os.path.exists(keyfile):
         context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
         context.load_cert_chain(certfile, keyfile)