Add usage instructions

README.md

@@ -1,3 +1,35 @@
 # Twilio2Telegram
 
-Forward SMS from your Twilio number to Telegram
+Forward SMS and Calls from your Twilio number to Telegram
+
+## Usage
+
+### Clone the repository
+
+`git clone git@github.com:FiveBoroughs/Twilio2Telegram.git`
+
+### Set the envirronement variables
+
+`cp sample.env .env && vim .env`
+
+Create your bot and obtain the BotToken by following the BotFather instructions : t.me/botfather
+
+Get the telegram owner and subscribers chat id by talking to the bot in telegram, and watching this url `https://api.telegram.org/bot<BotToken>/getUpdates`
+
+And the Twilio Token from twilio.com/console : hidden behind the "View" button, next to auth token
+
+### Launch the docker container
+
+`docker-compose up -d`
+
+### Set the Twilio webhooks destination
+
+Click on the desired number twilio.com/console/phone-numbers/incoming
+
+And add the domain or ip of the server hosting Twilio2Telgram, `/call` for calls and `/message` for messages
+
+![Twilio Webhooks settings](/static/Screenshot_twilio_webhook_settings.png)
+
+Optional :
+Twilio2Telegram listens for webhook calls on the 8080 port.
+If you want to add https and user the port 80, set up a reverse proxy on the machine