Update README.md

README.md

@@ -20,11 +20,11 @@
 
 Install or update Android Studio to its latest version.
 
-The SDK supports API level 21 and above
+The SDK supports API level 23 and above
 
 Make sure that your app meets the following requirements:
 
-- `minSdkVersion = 21`
+- `minSdkVersion = 23`
 - `targetSdkVersion = 36`
 - `Kotlin = 1.8.22+`
 - `android.useAndroidX = true`