JS Documentation (#3535)

* Initial JS documentation
* Spelling fix

Co-authored-by: あく <alleteam@gmail.com>

documentation/js/js_notification.md

@@ -0,0 +1,36 @@
+# js_notification {#js_notification}
+
+# Notification module
+```js
+let notify = require("notification");
+```
+# Methods
+
+## success
+"Success" flipper notification message
+
+### Examples:
+```js
+notify.success();
+```
+
+## error
+"Error" flipper notification message
+
+### Examples:
+```js
+notify.error();
+```
+
+## blink
+Blink notification LED
+
+### Parameters
+- Blink color (blue/red/green/yellow/cyan/magenta)
+- Blink type (short/long)
+
+### Examples:
+```js
+notify.blink("red", "short"); // Short blink of red LED
+notify.blink("green", "short"); // Long blink of green LED
+```