Add additional information on demo dataset (#8243)

docs/docs/demo.md

@@ -24,3 +24,35 @@ The demo instance has a number of user accounts which you can use to explore the
 | ian | inactive | No | No | Inactive account, cannot log in |
 | susan | inactive | No | No | Inactive account, cannot log in |
 | admin | inventree | Yes | Yes | Superuser account, can access all parts of the system |
+
+### Dataset
+
+The demo instance is populated with a sample dataset, which is reset every 24 hours.
+
+The source data used in the demo instance can be found on our [GitHub page](https://github.com/inventree/demo-dataset).
+
+### Local Setup
+
+If you wish to install the demo dataset locally (for initial testing), you can run the following command:
+
+```bash
+invoke dev.setup-test -i
+```
+
+*(Note: The command above may be slightly different if you are running in docker.)*
+
+This will install the demo dataset into your local InvenTree instance.
+
+!!! warning "Warning"
+    This command will **delete all existing data** in your InvenTree instance! It is not intended to be used on a production system, or loaded into an existing dataset.
+
+### Clear Data
+
+To clear demo data from your instance, and start afresh with a clean database, you can run the following command:
+
+```bash
+invoke dev.delete-data
+```
+
+!!! warning "Warning"
+    This command will **delete all existing data** in your InvenTree instance, including any data that you have added yourself.

docs/docs/develop/devcontainer.md

@@ -52,7 +52,7 @@ Tasks can help you executing scripts. You can run them by open the command panel
 
 #### Setup demo dataset
 
-If you need some demo test-data, run the `setup-test` task. This will import an `admin` user with the password `inventree`. For more info on what this dataset contains see [inventree/demo-dataset](https://github.com/inventree/demo-dataset).
+If you need some demo test-data, run the `setup-test` task. This will import an `admin` user with the password `inventree`. For more info on what this dataset contains see [inventree/demo-dataset](../demo.md).
 
 #### Setup a superuser