docs: Details in README

Signed-off-by: Tibo De Peuter <tibo.depeuter@ugent.be>

backend/README.md

@@ -0,0 +1,22 @@
+# dwengo-1-backend
+
+## Project setup
+
+```shell
+npm install
+```
+
+Setup the environment variables in a `.env` file in the root of the project. You can use the `.env.example` file as a template.
+
+### Development
+
+```shell
+npm run dev
+```
+
+### Production
+
+```shell
+npm run build
+npm run start
+```