Improve installation instructions to make sure that challenge-cli dependencies are installed.

README.md

@@ -55,16 +55,19 @@ In the [terminology of Dyff](https://docs.dyff.io/tutorial/), the thing that you
 
 ### Install the Dyff SDK
 
-You need Python 3.10+ (3.12 recommended). We recommend you install into a virtual environment:
+You need Python 3.10+ (3.12 recommended). We recommend you install into a virtual environment. If you're using this repository, you can install `dyff` and a few other useful dependencies as described in the [Quick Start](#quick-start) section:
 
 ```
-python3 -m venv venv
+# After installing the `uv` tool:
+make setup
 source venv/bin/activate
 ```
 
-Then, install the Dyff SDK:
+Or, you can install just `dyff` into a `venv` like this:
 
 ```
+python3 -m venv venv
+source venv/bin/activate
 python3 -m pip install --upgrade dyff
 ```