Update README.md

python/examples/criteo_ctr_with_cube/README.md

@@ -7,7 +7,7 @@ in the root directory of this git project
 ```
 mkdir build_server
 cd build_server
-cmake -DPYTHON_INCLUDE_DIR=$PYTHONROOT/include/python2.7/  -DPYTHON_LIBRARIES=$PYTHONROOT/lib/libpython2.7.so  -DPYTHON_EXECUTABLE=$PYTHONROOT/bin/python  -DCLIENT_ONLY=OFF ..
+cmake -DPYTHON_INCLUDE_DIR=$PYTHONROOT/include/python2.7/ -DPYTHON_LIBRARIES=$PYTHONROOT/lib64/libpython2.7.so -DPYTHON_EXECUTABLE=$PYTHONROOT/bin/python -DSERVER=ON ..
 make -j10
 make install -j10
 ```