diff --git a/README.md b/README.md
index 2524210..a53db1b 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,42 @@
 - packer.nvim
 
 ```lua
-use({ "BYT0723/goctl.nvim", run = ":GoctlUpgrade" })
+use({ "BYT0723/goctl.nvim", run = ":GoctlUpgrade", requires = {"MunifTanjim/nui.nvim"} })
+
+-- recommend
+use("rcarriga/nvim-notify")
+```
+
+## Init
+
+```lua
+require("goctl").setup()
 ```
 
 ## Features
 
+- Validate
+
+> goctl valid when vim event "BufRead", "TextChanged", "TextChangedI".
+
+- Format
+
+use command `GoctlApiFormat` or lua
+
+```lua
+-- format when write file
+vim.api.nvim_command("au BufWritePre *.api lua require('goctl.api').format()")
+```
+
+- ApiMenu
+use command `GoctlApi` or lua
+
+```lua
+require("goctl.api").menu()
+```
+
+## Preview
+
 <details>
     <summary>Code Diagnostic</summary>
     <img src="./images/goctl-diagnostic.gif" />
@@ -22,6 +53,20 @@ use({ "BYT0723/goctl.nvim", run = ":GoctlUpgrade" })
     <img src="./images/goctl-format.gif" />
 </details>
 
+<details>
+    <summary>Api</summary>
+    <img src="./images/goctl_api_menu.jpg" />
+</details>
+
+<details>
+    <summary>ApiNew</summary>
+    <img src="./images/goctl_api_new.jpg" />
+</details>
+<details>
+    <summary>ApiGenerate</summary>
+    <img src="./images/goctl_api_generate.jpg" />
+</details>
+
 ## Other
 
 > plugin is being developed. We look forward to your participation and suggestions
diff --git a/images/goctl_api_generate.jpg b/images/goctl_api_generate.jpg
new file mode 100644
index 0000000..cbecd92
Binary files /dev/null and b/images/goctl_api_generate.jpg differ
diff --git a/images/goctl_api_menu.jpg b/images/goctl_api_menu.jpg
new file mode 100644
index 0000000..c265c57
Binary files /dev/null and b/images/goctl_api_menu.jpg differ
diff --git a/images/goctl_api_new.jpg b/images/goctl_api_new.jpg
new file mode 100644
index 0000000..fd5ba97
Binary files /dev/null and b/images/goctl_api_new.jpg differ
diff --git a/lua/goctl/api.lua b/lua/goctl/api.lua
index 3a53292..678d60b 100644
--- a/lua/goctl/api.lua
+++ b/lua/goctl/api.lua
@@ -91,7 +91,7 @@ function M.new()
 		job:new(cmd)
 	end
 
-	input:new("Path", "greet", on_submit):display()
+	input:new("New Service", "greet", on_submit):display()
 end
 
 function M.doc()
@@ -170,10 +170,10 @@ function M.generate()
 	local type_submit = function(item)
 		table.insert(cmd, item.id)
 		type = item.id
-		input:new("Path", util.filename_ex_suffix(), dir_submit):display()
+		input:new("Dir", util.filename_ex_suffix(), dir_submit):display()
 	end
 
-	menu:new("Api Generate", {
+	menu:new("Service Language", {
 		{ text = "Golang", id = "go" },
 		{ text = "Typescript", id = "ts" },
 		{ text = "Dart", id = "dart" },