Update index.md

docs/index.md

@@ -126,6 +126,14 @@ The `docker-compose.yml` configuration can be modified to suit your needs using
 
 * `INVENIO_MAIL_SUPPRESS_SEND` - Set to `True` to suppress sending emails, defaults to `True`. Useful for development and testing.
 
+### Invenio-S3
+
+* `INVENIO_S3_ENDPOINT_URL='http://localhost:9000/'` - The S3 compatible endpoint.
+* `INVENIO_S3_ACCESS_KEY_ID='CHANGE_ME'` - S3 access key id
+* `INVENIO_S3_SECRET_ACCESS_KEY='CHANGE_ME'` - S3 secret access key
+* `INVENIO_S3_REGION_NAME='us-east-1'` - S3 region
+* `INVENIO_S3_BUCKET_NAME=` - S3 bucket name
+
 ## Architecture
 
 InvenioRDM Starter differs from the `Dockerfile` and `docker-compose.yml` generated by