diff --git a/README.md b/README.md
index 4e5f77b..6e0c56b 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,9 @@ However, support for the backend type is poorer than ntfy.
 
 ```sh
 $ # for linux
-$ sudo curl -L https://github.com/hrntknr/ntf/releases/download/v0.1.9/ntf-x86_64-unknown-linux-gnu -o /usr/local/bin/ntf
+$ sudo curl -L https://github.com/hrntknr/ntf/releases/download/v1.0.1/ntf-x86_64-unknown-linux-gnu -o /usr/local/bin/ntf
 $ # for mac
-$ # sudo curl -L https://github.com/hrntknr/ntf/releases/download/v0.1.9/ntf-x86_64-apple-darwin -o /usr/local/bin/ntf
+$ # sudo curl -L https://github.com/hrntknr/ntf/releases/download/v1.0.1/ntf-x86_64-apple-darwin -o /usr/local/bin/ntf
 $ sudo chmod +x /usr/local/bin/ntf
 
 $ echo -e 'backends: ["pushover"]\npushover: {"user_key": "t0k3n"}' > ~/.ntf.yml
@@ -38,6 +38,45 @@ $ echo 'export AUTO_NTF_DONE_LONGER_THAN=10' >> ~/.bashrc
 $ echo 'eval "$(ntf shell-integration)"' >> ~/.bashrc
 ```
 
+```
+> $ ntf --help
+Usage:
+   [command]
+
+Available Commands:
+  done              Execute the command and notify the message
+  help              Help about any command
+  send              send notification
+  shell-integration shell-integration
+
+Flags:
+  -h, --help   help for this command
+
+Use " [command] --help" for more information about a command.
+
+> $ ntf send --help
+send notification
+
+Usage:
+   send [flags]
+
+Flags:
+      --backends strings
+  -h, --help                       help for send
+      --line.token string
+      --pushbullet.token string
+      --pushover.device string
+      --pushover.expire int
+      --pushover.priority string
+      --pushover.retry int
+      --pushover.user_key string
+      --slack.color string
+      --slack.webhook string
+      --syslog.facility string
+      --syslog.severity string
+  -t, --title string               override title
+```
+
 ## Supported backend
 
 ### [slack: (webhook)](https://api.slack.com/messaging/webhooks)
@@ -111,3 +150,8 @@ syslog:
   facility: 'user' #option
   severity: 'emerg' #option
 ```
+
+## Custom backend
+
+You can add the custom backend you want by simply creating a struct that implements the interface in the backends folder.  
+Or, submit a backend request that you would like to use via Issue.