Add readme

.env.sample

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+# rqlite URL
+DATABASE_URL=http://rqlite:4001
+
+# message queue URL
+MQ_URL=tcp://mq:9000
+
+# discord bot token
+TOKEN=
+
+# discord channel to post new XKCD comics to
+UPLOAD_CHANNEL=
+
+# zipkin url to report spans
+ZIPKIN_URL=http://zipkin:9411/api/v1/spans

README.md

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+# vyvanse
+
+A simple chatbot and spamfiltering automaton for your discord enjoyment. Click this link to 
+[invite me to your server](https://discordapp.com/oauth2/authorize?client_id=266986250689445888&scope=bot)!
+
+## Stack
+
+- Go
+- Discordgo
+- Drone MQ
+- RQLite
+- Zipkin
+
+## Local Development
+
+### Dependencies
+
+- [box](https://github.com/box-builder/box)
+- [Nim](https://nim-lang.org)
+- [Docker](https://docker.com) (either the toolbox or the native app will work)
+
+### Setup
+
+```console
+$ cp .env.sample .env
+$ e .env # or your favorite editor
+```
+
+Fill out `TOKEN=` with your discord bot token.
+
+```console
+$ nim up
+```
+
+Then head to [Zipkin](http://127.0.0.1:9411) and see the tracing data for each command invocation.