Fix typo.

Makefile

@@ -17,7 +17,7 @@ ssh-keys: .ssh/shore_ed25519
 ssh-keys: .ssh/shore_rsa
 ssh-keys: .ssh/smile_ed25519
 ssh-keys: .ssh/smile_rsa
-ssh-keys: .ssh/smile_shared_sre_rsa
+ssh-keys: .ssh/smile_sre_shared_rsa
 
 .ssh/%_rsa: Documents/Database.kdbx
 	$(mkd)