mention quarto install explicitly

Author: mccalluc

README.md

@@ -58,7 +58,7 @@ git fetch --tags upstream
 Then install:
 
 ```sh
-pip install -e ".[dev,test]"
+pip install -e ".[dev,test,doc]"
 ```
 
 Additionally, you can install pre-commit hooks which will automatically reformat and lint the code when you make a commit:
@@ -78,3 +78,5 @@ make check-types
 make check-lint
 make check-format
 ```
+
+See the [docs README](docs/README.md) for instructions on building the documentation locally.

docs/README.md

@@ -5,7 +5,7 @@ This directory contains files to generate Shiny for Python API documentation, us
 
 ## Building the docs
 
-To build the docs, first install the Python dependencies and Quarto extensions:
+To build the docs, first [download and install Quarto](https://quarto.org/docs/get-started/), and then install the Python dependencies and Quarto extensions:
 
 ```bash
 # Install build dependencies
@@ -22,6 +22,7 @@ Then build the web site using Quarto:
 
 ```bash
 make site
+# When this completes, the docs will be available at _site/index.html.
 ```
 
 Alternatively, running `make serve` will build the docs, and serve them locally, and watch for changes to the .qmd files: