Merge branch 'master' into 'master'

fix env and README

See merge request !36

env.sh

@@ -15,6 +15,9 @@ MODEL_CODEGEN_DIR=${CODEGEN_DIR}/models/${MODEL_TAG}
 CL_CODEGEN_DIR=${CODEGEN_DIR}/opencl
 TUNING_CODEGEN_DIR=${CODEGEN_DIR}/tuning
 VERSION_SOURCE_PATH=${CODEGEN_DIR}/version
+if [ -z ${EMBED_MODEL_DATA} ]; then
+  EMBED_MODEL_DATA=1
+fi
 
 if [ x"$RUNTIME" = x"dsp" ]; then
   DATA_TYPE="DT_UINT8"