Update install-from-pip.md

Author: zhichao-li

docs/docs/PythonSupport/install-from-pip.md

@@ -26,7 +26,7 @@ pip install BigDL==0.1.2     # for Python 2.7
 pip3 install BigDL==0.1.2  # for Python 3.n
 ```
 
-## **Install BigDL-0.2.0-snapshot**
+## **Install BigDL-0.2.0**
 
 1.Download Spark1.6.3:  
 ```bash
@@ -42,8 +42,8 @@ export SPARK_HOME=path to spark-1.6.3-bin-hadoop2.6
 - NOTE: you might need to `sudo` if without permission for the installation
 ```bash
 pip install --upgrade pip
-pip install BigDL==0.2.0.dev4     # for Python 2.7
-pip3 install BigDL==0.2.0.dev4  # for Python 3.n
+pip install BigDL==0.2.0     # for Python 2.7
+pip3 install BigDL==0.2.0  # for Python 3.n
 ```