Simplify install instructions

Author: dstansby

README.md

@@ -27,20 +27,13 @@ We also have a [tutorial](./tutorial.md) that has been presented in a couple of
 
 ## Using our template
 
-If you have [uv] installed, you can use our template with the following one-liner:
+If you have [uv] installed, you can use our template with the following command:
 
 ```sh
 uvx cookiecutter gh:ucl-arc/python-tooling --checkout latest
 ```
 
-Alternatively you can [install cookiecutter] (following the recommended instructions).
-Do this if you don't use [uv], or if you're likely to want to use cookiecutter again.
-
-Then you'll need to run cookiecutter with our template:
-
-```sh
-cookiecutter gh:ucl-arc/python-tooling --checkout latest
-```
+If you don't want to use uv you can [install cookiecutter using pip], and run the above command without the leading `uvx`.
 
 When [cookiecutter] runs, it will ask you a series of questions to configure your project.
 Type the answer or hit return without typing anything to use the default option (shown in parenthesis).