[PATCH] Use /ns in manual example

Follow a79a3fc "Use NS and CS server aliases".
---
 catgirl.1 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/catgirl.1 b/catgirl.1
index b8c42c2..1b74b6c 100644
--- a/catgirl.1
+++ b/catgirl.1
@@ -389,7 +389,7 @@ Identify with services or use
 then add the certificate fingerprint
 to your account:
 .Bd -literal -offset indent
-/msg NickServ CERT ADD
+/ns CERT ADD
 .Ed
 .It
 Enable SASL EXTERNAL
-- 
2.32.0

Good catch, it always should have said this.