Changed by Bix, Added CMD instructions.

Building-for-Android.-.md

@@ -19,6 +19,16 @@ Eden by default will be cloned into -
 2. Navigate to the `eden/src/android` directory and click on `OK`.
 3. In `Build > Select Build Variant`, select `release` or `relWithDebInfo` as the "Active build variant".
 4. Build the project with `Build > Make Project` or run it on an Android device with `Run > Run 'app'`.
+### Building with Terminal
+1. Download the SDK and NDK from Android Studio.
+2. Navigate to SDK and NDK paths.
+3. Then set ANDROID_SDK_ROOT and ANDROID_NDK_ROOT in terminal via
+`export ANDROID_SDK_ROOT=path/to/sdk`
+`export ANDROID_NDK_ROOT=path/to/ndk`.
+4. Navigate to `eden/src/android`.
+5. Then Build with `./gradlew assemblerelWithDebInfo`.
+
+
 
 ### Additional Resources
 https://developer.android.com/studio/intro