Document

README.md

@@ -12,6 +12,45 @@ On macOS, or Linux, run:
 
 On Windows, download [binary](https://github.com/dnote-io/cli/releases)
 
+## Usage
+
+Dnote categorizes your **notes** by **books**.
+
+All your books and notes are stored in `$HOME/.dnote` as a YAML file.
+
+In the future, you can sync your note with the Dnote server and set up digest notifications to reinforce your learning.
+
+### Commands
+
+**dnote use [book name]**
+
+Change the book to write your note in.
+
+e.g.
+
+    dnote use linux
+
+**dnote new "[note]"**
+
+Write a new note under the current book.
+
+e.g.
+
+    dnote new "set -e instructs bash to exit immediately if any command has non-zero exit status"
+
+**dnote books**
+
+List all the books that you created
+
+e.g.
+
+    $ dnote books
+      javascript
+    * linux
+      tmux
+      css
+
+
 ## Links
 
 * [Website](https://dnote.io)
@@ -19,3 +58,7 @@ On Windows, download [binary](https://github.com/dnote-io/cli/releases)
 ## License
 
 MIT
+
+-------
+
+> Made by [sung](https://sungwoncho.io)

main.go

@@ -268,12 +268,18 @@ func checkUpdates() error {
 	return nil
 }
 
+func heartbeat() {
+	http.Get("http://api.dnote.io/heartbeat")
+}
+
 func main() {
 	err := initDnote()
 	check(err)
 	err = checkUpdates()
 	check(err)
 
+	heartbeat()
+
 	if len(os.Args) < 2 {
 		fmt.Println("Dnote - Spontaneously capture new engineering lessons\n")
 		fmt.Println("Commands:")