Update README.md

Author: Cangol

README.md

@@ -4,11 +4,11 @@
 ## Included
 * OpenJDK 8
 * Git
-* Gradle 4.1
+* Gradle 3.3
 * Android NDK r16b
-* Android SDK (android-26)
-* Android Build-tools (26.0.3)
-* Android System Images(sys-img-armeabi-v7a-android-26,sys-img-armeabi-v7a-android-26)
+* Android SDK (android-25)
+* Android Build-tools (25.0.0)
+* Android System Images(sys-img-armeabi-v7a-android-25)
 * Android Support Libraries
 * Google Play Services