Fix typo.

README.md

@@ -103,10 +103,10 @@ Usage: go-sendxmpp [-cdilnt] [-f value] [--help] [--http-upload value] [-j value
                     Skip verification of TLS certificates (not recommended).
      --ox           Use "OpenPGP for XMPP" encryption (experimental).
      --ox-genprivkey-rsa
-                    Generate a public OpenPGP key (RSA 4096 bit) for the given
+                    Generate a private OpenPGP key (RSA 4096 bit) for the given
                     JID and publish the corresponding public key.
      --ox-genprivkey-x25519
-                    Generate a public OpenPGP key (x25519) for the given JID and
+                    Generate a private OpenPGP key (x25519) for the given JID and
                     publish the corresponding public key.
      --ox-import-privkey=value
                     Import an existing private OpenPGP key.

main.go

@@ -108,10 +108,10 @@ func main() {
 	flagMUCPassword := getopt.StringLong("muc-password", 0, "", "Password for password protected MUCs.")
 	flagOx := getopt.BoolLong("ox", 0, "Use \"OpenPGP for XMPP\" encryption (experimental).")
 	flagOxGenPrivKeyRSA := getopt.BoolLong("ox-genprivkey-rsa", 0,
-		"Generate a public OpenPGP key (RSA 4096 bit) for the given JID and publish the "+
+		"Generate a private OpenPGP key (RSA 4096 bit) for the given JID and publish the "+
 			"corresponding public key.")
 	flagOxGenPrivKeyX25519 := getopt.BoolLong("ox-genprivkey-x25519", 0,
-		"Generate a public OpenPGP key (x25519) for the given JID and publish the "+
+		"Generate a private OpenPGP key (x25519) for the given JID and publish the "+
 			"corresponding public key.")
 	flagOxPassphrase := getopt.StringLong("ox-passphrase", 0, "",
 		"Passphrase for locking and unlocking the private OpenPGP key.")