rscli improvements

content/page/dev-tools/rscli.mdx

@@ -22,12 +22,24 @@ The RSCLI is a command line application. To use it, open a command line prompt a
 rscli --help
 ```
 
+## Uploading Projects
+
 For help uploading data, run the following command:
 
 ```bash
 rscli upload --help
 ```
 
+## Downloading Projects
+
+The most common rscli use case is to download projects from the [Riverscapes Data Exchange](https://data.riverscapes.net). In the following command, replace the `<local_empty_folder>` with a path on your computer to an empty folder where the project will be downloaded. Replace the `<project_guid>` with the GUID of a project. You can obtain this GUID from the URL when viewing the project details in the Data Exchange.
+
+```bash
+rscli download <local_empty_folder> --id <project_guid>
+```
+
+You must have read permissions to access the project before you can download it. A good rule of thumb is that if you can see the project details in the Data Exchange then you can download the project. Unlike downloading projects from the Data Exchange that will result in a zip file, rscli will download the project as raw individual uncompressed files.
+
 For help downloading data, run the following command:
 
 ```bash