update README

README.md

@@ -20,56 +20,60 @@ The program is designed to be run during a flight and display information in a t
 - plot variables such as altitude and ascent rate over time
 - estimate landing time and location
 
-## Installation
+## Instructions
 
-[Download an executable (`packetraven_Windows.exe`, `packetraven_macOS`, or `packetraven_Linux`) from the latest release.](https://github.com/UMDBPP/PacketRaven/releases)
+1. Write a YAML configuration file from [the instructions](https://packetraven.readthedocs.io/en/latest/configuration.html), or use the following example:
+    ```yaml
+    # example.yaml
+    connections:
+      text:
+        - path: ~/raw_aprs_frames.txt
+          callsigns: 
+            - W3EAX-8
+        - path: http://bpp.umd.edu/archives/Launches/NS-111_2022_07_31/APRS/W3EAX-8%20raw.txt
+    ```
 
-> **Note**\
-> Alternatively, you may compile the program yourself:
-> ```shell
-> git clone https://github.com/UMDBPP/PacketRaven.git
-> cd packetraven
-> cargo build --release
-> ls target/release/packetraven*
-> ```
+2. Download an executable from the [Releases page](https://github.com/UMDBPP/PacketRaven/releases).
 
-## Usage
+3. Open a terminal window.
 
-### `start`
+4. Run the executable you downloaded with the `start` subcommand and a path to your configuration file:
+    ```shell
+    cd Downloads
+    packetraven_Windows.exe start example.yaml
+    ```
 
-Run your executable from the terminal with the `start` subcommand and the path to your configuration file:
-```shell
-./packetraven_Windows.exe start examples/example_1.yaml
-```
-
-[Instructions for creating a configuration file can be found in the documentation](https://packetraven.readthedocs.io/en/latest/configuration.html).
-Example configurations can be found in the `examples/` folder:
-
-```yaml
-connections:
-  text:
-    - path: ~/raw_aprs_frames.txt
-      callsigns: 
-        - W3EAX-8
-    - path: http://bpp.umd.edu/archives/Launches/NS-111_2022_07_31/APRS/W3EAX-8%20raw.txt
-```
+5. You should now see the user interface. Resize your terminal window or decrease the font size as needed.
+  ![starting screen](https://github.com/UMDBPP/PacketRaven/blob/main/docs/images/example1_log.png)
 
-You should then see the user interface. Resize your terminal window, or decrease the font size, as needed.
-![starting screen](https://github.com/UMDBPP/PacketRaven/blob/main/docs/images/example1_log.png)
+6. The left and right arrow keys (or `Tab` and `Shift+Tab`) cycle through active tabs, and the up and down arrow keys change the current plot (or scroll through log messages).
+  ![altitude telemetry plotted over time](https://github.com/UMDBPP/PacketRaven/blob/main/docs/images/example1_altitude.png)
 
-The left and right arrow keys (or `Tab` and `Shift+Tab`) cycle through active tabs, 
-and the up and down arrow keys change the current plot (or scroll through log messages).
-![altitude telemetry plotted over time](https://github.com/UMDBPP/PacketRaven/blob/main/docs/images/example1_altitude.png)
+7. To quit, press `q` or `Esc`.
 
-To quit, press `q` or `Esc`.
+## retrieve predictions
 
-### `predict`
-
-You can run the `predict` subcommand to retrieve a balloon flight prediction from a Tawhiri API:
+Run `packetraven predict` to retrieve a balloon flight prediction:
 
 ```shell
-./packetraven_Windows.exe predict "2023-08-16T10:00:00" -- -79 39 5 30000 9
+packetraven_Windows.exe predict "2023-08-16T10:00:00" -- -79 39 5 30000 9
+```
+```shell
+retrieve a balloon prediction from the given API - negative values must be preceded with a `-- `, i.e. `-- -79`
+
+Usage: packetraven predict [OPTIONS] <TIME> <LONGITUDE> <LATITUDE> <ASCENT_RATE> <BURST_ALTITUDE> <SEA_LEVEL_DESCENT_RATE>
+
+Arguments:
+  <TIME>                    start time i.e. `2023-08-16T10:00:00`
+  <LONGITUDE>               start longitude
+  <LATITUDE>                start latitude
+  <ASCENT_RATE>             expected average ascent rate
+  <BURST_ALTITUDE>          expected burst altitude
+  <SEA_LEVEL_DESCENT_RATE>  descent rate at sea level
+
+Options:
+  -a, --altitude <ALTITUDE>              start altitude
+      --float-altitude <FLOAT_ALTITUDE>  desired float altitude
+      --float-duration <FLOAT_DURATION>  desired float duration in seconds
+  -h, --help                             Print help
 ```
-
-> **Note**\
-> Negative values must be prepended with `-- `, e.g. `-- -79`.:w