Update README.md

Author: gabebear

README.md

@@ -11,7 +11,7 @@ Install and debug iOS apps from the command line. Designed to work on un-jailbro
 * You need to have a valid iOS Development certificate installed
 * Xcode (**NOT** just Command Line Tools!)
 
-### Testing
+#### Tested Configurations
 The ios-deploy binary in Homebrew should work on macOS 10.0+ with Xcode7+. It has been most recently tested with the following configurations:
  - macOS 10.14 Mojave, 10.15 Catalina, and 11.0b BigSur
  - iOS 13.0 and iOS 14.0b