Update README.md

Author: sweetdream779

README.md

@@ -23,7 +23,7 @@ export OPENCV_ANDROID_SDK=/Users/hoopoe/Tools/OpenCV-android-sdk
 3. dlib adapted to work with -DANDROID_STL=gnustl_shared
 
 
-## Paths needed in changes:
+## Paths needed to be changed:
 1) OPENCV_ANDROID_SDK in CMakeLists.txt
 2) TF_SRC_ROOT in jni/CMakeLists.txt