diff --git a/hostr/main.go b/hostr/main.go
index d9b13fd..dfc445c 100644
--- a/hostr/main.go
+++ b/hostr/main.go
@@ -36,13 +36,13 @@ func main() {
 					&cli.BoolFlag{
 						Name:    "replaceable",
 						Aliases: []string{"r"},
-						Usage:   "🧪 Experimental: Specify 'true' explicitly when using NIP-33",
-						Value:   false,
+						Usage:   "Specify 'true' explicitly when using NIP-33",
+						Value:   true,
 					},
 					&cli.StringFlag{
 						Name:    "identifier",
 						Aliases: []string{"d"},
-						Usage:   "🧪 Experimental: index.html identifier (valid only if replaceable option is true)",
+						Usage:   "index.html identifier (valid only if replaceable option is true)",
 					},
 				},
 				Action: func(ctx *cli.Context) error {
@@ -51,7 +51,7 @@ func main() {
 					path := ctx.String("path")
 					replaceable := ctx.Bool("replaceable")
 					dTag := ctx.String("identifier")
-					
+
 					indexEventId, err := deploy.Deploy(path, replaceable, dTag)
 					if err == nil {
 						fmt.Println("🌐 Deploy Complete!")
diff --git a/readme.md b/readme.md
index dbf5b46..a5d909a 100644
--- a/readme.md
+++ b/readme.md
@@ -39,8 +39,9 @@ Or if you want to generate private key: `hostr generate-key`
 3. Add relay
 `hostr add-relay wss://r.hostr.cc`
 4. Deploy
-`hostr deploy /BUILT/SPA/DIR/PATH`
-The event id of index.html will be output after deploy. Please make a copy of it.
+`hostr deploy --path /BUILT/SPA/DIR/PATH --identifier=test`
+   - The `--identifier` option is the identifier (d-tag) for Replaceable Events based on NIP-33. When you update this site, please specify the same identifier. If you want to create a non-replaceable site, you can achieve that by specifying `--replaceable=false`.
+   - The event id of index.html will be output after deploy. Please make a copy of it.
 5. Start test web server
 `hostr start`
 6. Access the `http://localhost:3000/e/{event-id-of-index.html}`