docs: Update README

Author: mykola-mokhnach

README.md

@@ -13,6 +13,7 @@ On top of standard Appium requirements Mac2 driver also expects the following pr
 - macOS 10.15 or later
 - Xcode 12 or later should be installed
 - Xcode Helper app should be enabled for Accessibility access. The app itself could be usually found at `/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Xcode/Agents/Xcode Helper.app`. In order to enable Accessibility access for it simply open the parent folder in Finder: `open /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Xcode/Agents/` and drag & drop the `Xcode Helper` app to `Security & Privacy -> Privacy -> Accessibility` list of your `System Preferences`. This action must only be done once.
+- Since the version `1.0.0` this driver is only compatible with Appium 2. Use the `appium driver install mac2` CLI command to add it to your server dist.
 
 
 ## Capabilities