docs: add installation and development environment documentation

README.md

@@ -5,3 +5,28 @@ on and interacting with the CAPE infrastructure. It basically provides an
 abstraction layer over the core concepts such as ETL (extract, transform, load)
 jobs and analysis pipelines that allow interacting with these types of
 structures without worrying about the implementation details of each.
+
+## Installation
+
+```sh
+pip install git+https://github.com/cape-ph/capepy.git
+```
+
+## Development
+
+Install dependencies with
+
+```sh
+poetry install
+```
+
+We have Poetry set up to install into a virtual environment within the
+repository as `.venv`. You can either use the Poetry shell feature or activate
+this environment directly.
+
+```sh
+# Activate the Poetry shell
+poetry shell
+# Activate the virtual environment directly
+source .venv/bin/activate
+```