Update building instructions, mention updated JDK and NDK requirements
@@ -38,7 +38,7 @@ Special **swig** version (swig-2.0.11-nutiteq branch) is needed for generating l
**CMake 3.14 or later** is required by build scripts
-Android build requires **Android SDK** and **Android NDK r21** or later.
+Android build requires **Android SDK**, **JDK 10** or newer and **Android NDK r22** or newer.
iOS build requires **XCode 12** or later.
