added some README info

README.md

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+# Overview
+
+Kwaylon lives in a Docker container
+
+- `docker-compose.yml`
+    - Used to easily run the container with some preset configurations
+- `Dockerfile`
+    - Used by `docker-compose` to (re)build the container, if necessary
+    - Runs `src/main.py` as it's [CMD](https://docs.docker.com/engine/reference/builder/#cmd)
+- `src/main.py`
+    - Handles getting the login token from an environment variable
+    - Connects event callbacks to Kwaylon methods
+    - Runs the Discord client
+- `kwaylon.Kwaylon(Client)`
+    - Defines the logic
+
+# Operation
+
+## Messages
+
+Messages are each handled separately with the `Kwaylon.handle_message` callback, which applies the following logic
+
+1. `Kwaylon.read_command` - Used to manually force Kwaylon to read N days backwards in each `TextChannel` and record the reactions to the database.
+2. `Kwaylon.respond_to_joke`
+3. `Kwaylon.respond_to_emoji` - Used for the emoji leaderboard commands
+
+### Read Command
+Looks for a mention of the bot with "read N days"
+
+### Respond to Jokes
+
+Iterates through each object that inherits from `kwaylon.jokes.Joke`
+
+### Respond to Emoji Command
+
+# Files
+
+## File Structure
+
+Files are ultimately stored on the NAS in `/home/Kwaylon` for the `john` user, which is mounted to `/mnt/Kwaylon` on the
+Raspberry Pi
+
+```
+└── ./Kwaylon
+    ├── data
+    │   └── messages.db
+    ├── src
+    |   ├── .env
+    |   ├── kwaylon
+    |   └── main.py
+    ├── docker-compose.yml
+    └── Dockerfile
+```
+
+## Message Database
+
+The path of the message database defaults to working with the [file structure](#file-structure) above although it can
+also be passed into the `Kwaylon` constructor using the `db_path` argument.
+
+## Mounting on Raspberry Pi
+
+Run [`dietpi-drive_manager`](https://dietpi.com/docs/dietpi_tools/#dietpi-drive-manager) for access to the wizard for
+mounting network drives in DietPi.
+
+- `Add network drive`
+- `samba`
+- `JOHN-NAS`
+- `home/Kwaylon`
+- `john`
+- `<SYNOLOGY password>`
+- `/mnt/Kwaylon`