Update 'README.md'

README.md

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 # v2ray-docker
+Dockerized v2ray(Websocket + TLS) + Let's Encrypt with official and well-maintained docker containers. No BS private containers.
 
-Dockerized v2ray + websocket + TLS + Let's Encrypt with official and well-maintained docker containers.
+## Supports:
+- v2ray with websocket + TLS protocol using the **official v2ray docker image**.
+- Nginx frontend and Let's Encrypt script auto-renewal using the popular **linuxserver/letsencrypt docker image**.
+
+## Usage:
+### Required packages
+- docker-ce
+- docker-compose
+- python-jinja2. A popular python template processor. Should be available on most distros' package managers.
+
+### Building
+- git clone https://github.com/quackerd/v2ray-docker 
+- python setup.py