Update README

README.md

@@ -1,2 +1,17 @@
-# BangleJS 2 Multi-Timer
-To time _multiple_ things.
+# _BangleJS 2 Multi-Timer_
+
+> ### To time _multiple_ things.
+
+### Install
+
+1. Connect to your BangleJS 2 over bluetooth LE, on a supported browser (e.g. Chrome or Edge).
+2. Copy `app.js` into the web IDE and download in onto your BangleJS 2. Give the file a unique name, say `mytimer.app.js`.
+3. Provide your App Loader with the metadata required the run the app by entering the code below into the web IDE console.
+
+```js
+require("Storage").write("mytimer.info", {
+    id: "multi-timer",
+    name: "Multi Timer",
+    src: "mytimer.app.js",
+})
+```