Update README.md

README.md

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 # Domoticz-Tuya-SmartPlug-Plugin
-Domoticz Python Plugin for Tuya Smart Plug
+
+A Domoticz plugin to manage Tuya Smart Plug
+
+## ONLY TESTED FOR Raspberry Pi
+
+With Python version 3.5 & Domoticz version 4.9700 (stable) and 4.9999 (beta)
+
+## Prerequisites
+
+This plugin is based on the latest pytuya Python library. For the installation of this library,
+follow the Installation guide below since pip will not install the latest version commited few days ago.
+See [`https://github.com/clach04/python-tuya/`](https://github.com/clach04/python-tuya/) for more information.
+
+For the pytuya Python library, you need pycrypto. pycrypto can be installed with pip:
+```
+pip3 install pycrypto
+```
+See [`https://pypi.org/project/pycrypto/`](https://pypi.org/project/pycrypto/) for more information.
+
+## Installation
+
+```bash
+cd ~/domoticz/plugins
+git clone https://github.com/tixi/Domoticz-Tuya-SmartPlug-Plugin
+cd Domoticz-Tuya-SmartPlug-Plugin
+git clone https://github.com/clach04/python-tuya.git
+ln -s ~/domoticz/plugins/Domoticz-Tuya-SmartPlug-Plugin/python-tuya/pytuya pytuya
+# restart domoticz:
+sudo /etc/init.d/domoticz.sh restart
+```
+In the web UI, navigate to the Hardware page. In the hardware dropdown there will be an entry called "Tuya SmartPlug".
+
+## Known issue
+
+Domoticz may not have the path to the pycrypto library in its python environment.
+In this case you will observe something starting like that in the log:
+* failed to load 'plugin.py', Python Path used was 
+* Module Import failed, exception: 'ImportError'
+
+To find where pycrypto is installed, in a shell:
+```bash
+pip3 show pycrypto
+```
+The Crypto directory should be present in the directory indicated with Location.
+
+when you have it, just add a symbolic link to it in Domoticz-Tuya-SmartPlug-Plugin directory with ```ln -s```.
+Example:
+```bash
+cd ~/domoticz/plugins/Domoticz-Tuya-SmartPlug-Plugin
+ln -s /home/pi/.local/lib/python3.5/site-packages/Crypto Crypto
+```
+
+## Updating
+
+Like other plugins, in the Domoticz-Tuya-SmartPlug-Plugin directory:
+```bash
+git pull
+sudo /etc/init.d/domoticz.sh restart
+```
+
+## Parameters
+
+| Parameter | Value |
+| :--- | :--- |
+| **IP address** | IP of the Smart Plug eg. 192.168.1.231 |
+| **DevID** | devID of the Smart Plug |
+| **Local Key** | Local Key of the Smart Plug |
+| **Replay** | default is Yes |
+| **Debug** | default is False |
+
+Replay indicates that a command (on/off) will be replay in case of failure except when the Smart Plug is not connected.
+
+## DevID & Local Key Extraction
+
+All the information can be found here:
+[`https://github.com/clach04/python-tuya/`](https://github.com/clach04/python-tuya/)
+
+## Acknowledgements
+
+* clach04 for the pytuya library
+* Domoticz team