chore: merge readme changes

Author: jonblatho

README.md

@@ -4,10 +4,11 @@ A simple menu bar app for macOS that shows the current time in UTC. Loosely insp
 Requires macOS Catalina or Big Sur.
 
 ## Installation
-Installing SwiftUTCMenuClock is super-easy *unless* you want it to run itself at login (see below).
+Installing SwiftUTCMenuClock is easy:
 
 1. Head to the [latest release](https://github.com/jonblatho/SwiftUTCMenuClock/releases/latest) and download **SwiftUTCMenuClock.app.zip**.
-2. Drag **SwiftUTCMenuClock.app** from wherever it downloaded to to your Applications folder.
-3. Open it!
+2. Extract the ZIP archive. (This might be done automatically.)
+3. Drag **SwiftUTCMenuClock.app** from wherever it downloaded to to your Applications folder.
+4. Open it!
 
 By default, SwiftUTCMenuClock will open itself. (You can disable it by clicking on the menu clock and selecting the relevant option.)