update readme

README.md

@@ -4,37 +4,22 @@ A high altitude balloon flight simulator based on [tkschuler/EarthSHAB](https://
 
 ## Installation
 ```sh
-cargo install --git https://github.com/Brickworks/yahs.git
-```
-
-## Usage
-```sh
-export RUST_LOG=info # set the logging level [debug, info, warn]
+cargo install --git https://github.com/Brickworks/yahs.git --features gui
 yahs --help
 ```
 
-## Run a simulated flight
-### Configure the sim
+## Usage (CLI)
 Set the simulation configuration in `config/default.toml`
 
-### Start the sim
 Then use the `start` command to start a flight simulation. Use the `RUST_LOG`
 environment variable to specify the log level to report.
+
 ```sh
 yahs start
 ```
 
-### View the flight data
-First install the Brickworks support tooling, `firebrick`.
-```sh
-git clone [email protected]:Brickworks/firebrick.git
-cd firebrick
-pip install .
+## Usage (GUI)
 
-firebrick --help
-```
-Then start up a telemetry dashboard.
 ```sh
-firebrick dashboard -t $PATH_TO_TELEMETRY_CSV
+yahs gui
 ```
-Then navigate to the server address specified in the log output.