Modify README.

README.md

@@ -8,10 +8,17 @@ Using python3 and PyQt4
 
 ## 2. Solve dependencies
 
-2.1 Copy phantomjs executable in ./bin to /usr/bin/, or just add it to PATH.
-phantomjs executable can be downloaded from [here](https://bitbucket.org/ariya/phantomjs/downloads)
+### 2.1 Setup Phantomjs
+#### 2.1.1 Download Phantomjs
+phantomjs prebuilt executable can be downloaded from [here](https://bitbucket.org/ariya/phantomjs/downloads)
 
-2.2 solve requirements.txt
+#### 2.1.2 For Windows users:
+Copy phantomjs.exe to ${project_directory}/bin/.
+
+#### 2.1.3 For Linux users:
+Add the path of phantomjs executable to $PATH, or simply copy it to /usr/local/bin/.
+
+## 2.2 Install python packages
 pip install -r requirements.txt
 
 ## 3. Windows bundled executable binary.