Mention citation tool in README

README.md

@@ -1,18 +1,27 @@
 # brainglobe-utils
-Shared general purpose tools for the BrainGlobe project
+
+Shared general purpose tools for the BrainGlobe project, including [citation generation](#citations-for-brainglobe-tools).
 
 ## Installation
 
 ```bash
 pip install brainglobe-utils
 ```
+
 To also include the dependencies required for `napari`, use:
+
 ```bash
 pip install brainglobe-utils[napari]
 ```
 
 For development, clone this repository and install the dependencies with one of the following commands:
+
 ```bash
 pip install -e .[dev]
 pip install -e .[dev,napari]
 ```
+
+## Citations for BrainGlobe tools
+
+`brainglobe-utils` comes with the `cite-brainglobe` command line tool, to write citations for BrainGlobe tools for you so you don't need to worry about fetching the data yourself.
+You can read about [how to use the tool](https://brainglobe.info/documentation/brainglobe-utils/citation-module.html) on the documentation website.