Update readme

README.md

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 # Server Shutdown
 
-Plugin for SevenMod that schedules automatic server shutdowns and enables shutdown votes.
+Plugin for SevenMod that schedules automatic server shutdowns and enables shutdown votes. This plugin is in early development and is not ready for use in a live environment. **Use at your own risk.**
+
+## Configuration
+
+File: **ServerShutdown.xml**
+
+| Property                             | Default | Description                                                                              |
+| ------------------------------------ | ------- | ---------------------------------------------------------------------------------------- |
+| `ServerShutdownAutoRestart`          | `True`  | Enable if the server is set up to automatically restart after crashing                   |
+| `ServerShutdownCountdownTime`        | `5`     | The countdown time in minutes for scheduled shutdowns                                    |
+| `ServerShutdownEnableRestartCommand` | `True`  | Enable the restart admin command                                                         |
+| `ServerShutdownEnableVote`           | `True`  | Enable the voteshutdown admin command                                                    |
+| `ServerShutdownSchedule`             | `""`    | The automatic shutdown schedule in the format HH:MM. Separate multiple times with commas |
+| `ServerShutdownVotePercent`          | `0.60`  | The percentage of players that must vote yes for a successful shutdown vote              |
+
+## Admin Commands
+
+| Command             | Arguments (_\<required\> [optional]_) | Access    | Description                           |
+| ------------------- | ------------------------------------- | --------- | ------------------------------------- |
+| `sm cancelrestart`  |                                       | Changemap | Cancels an impending restart          |
+| `sm cancelshutdown` |                                       | Changemap | Cancels an impending shutdown         |
+| `sm restart`        | [minutes]                             | RCON      | Starts a server restart               |
+| `sm voterestart`    |                                       | Vote      | Starts a vote to restart the server   |
+| `sm voteshutdown`   |                                       | Vote      | Starts a vote to shut down the server |
 
 ## License