Update README

Author: trinhanhngoc

README.md

@@ -8,4 +8,12 @@ in PyDev, PyCharm, VSCode. This plugin aims to make the debugger works better fo
 A recordset is an ordered collection of records of the same model. Trying to read a field
 on multiple ids recordset will raise an error. Because PyDev.Debugger recognizes a recordset as a
 non-collection object so the error will be raise when evaluating its attributes. This plugin helps
-PyDev.Debugger correctly evaluate an multiple ids recordset.
+PyDev.Debugger correctly evaluate an multiple ids recordset.
+
+## Installation
+Install this plugin to the python environment in which the debugger runs.
+
+`pip install pydevd-odoo`
+
+## Screenshot
+![PyCharm Debugger](https://raw.githubusercontent.com/trinhanhngoc/pydevd-odoo/master/images/pycharm-debugger.png)