update build instructions

Author: inwoods

README.md

@@ -23,7 +23,7 @@ export PROJECT_PATH=~/Development/FbxExporters
 export UNITY3D_PATH=/Applications/Unity\ 5.6.1f1/Unity.app/Contents/MacOS/Unity
 export PACKAGE_NAME=FbxExporters
 export PACKAGE_VERSION=0.0.5a
-export FBXSDK_PACKAGE_PATH=~/Development/FbxSharp/FbxSdk_0.0.4a.unitypackage
+export FBXSDK_PACKAGE_PATH=~/Development/FbxSharpBuild/FbxSdk_0.0.4a.unitypackage
 
 "${UNITY3D_PATH}" -projectPath "${PROJECT_PATH}" -importPackage ${FBXSDK_PACKAGE_PATH} -quit
 "${UNITY3D_PATH}" -batchmode -projectPath "${PROJECT_PATH}" -exportPackage Assets/FbxExporters Assets/FbxSdk  ${PROJECT_PATH}/${PACKAGE_NAME}_${PACKAGE_VERSION}.unitypackage -quit