update

README.md

@@ -5,4 +5,4 @@
 git clone http://112.124.49.128:3000/tzquant_zq/tz_crypto_pub && cd tz_crypto_pub && sh init_bash.sh && python3 tz_crypto_bt.py
 
 初次已经安装好环境更新框架：
-rm -rf tz_crypto_pub && git clone http://112.124.49.128:3000/tzquant_zq/tz_crypto_pub && python3 tz_crypto_bt.py
+rm -rf tz_crypto_pub && git clone http://112.124.49.128:3000/tzquant_zq/tz_crypto_pub && cd tz_crypto_pub && python3 tz_crypto_bt.py