Error in module 4 for zone "oda-misc-zone" without auto-discovery

Under module 3 [chapter 3.3.2](https://github.com/GoogleCloudPlatform/dataplex-labs/blob/main/dataplex-quickstart-labs/02-lab-guide/module-03-organize-your-data-lake.md#332-create-a-zone-for-the-non-data-assets), the zone _oda-misc-zone_ is created without discovery.

Therefore, under module 4, the chapters [2.3.2](https://github.com/GoogleCloudPlatform/dataplex-labs/blob/main/dataplex-quickstart-labs/02-lab-guide/module-04-register-assets-into-zones.md#232-register-the-assets) and [2.4.2](https://github.com/GoogleCloudPlatform/dataplex-labs/blob/main/dataplex-quickstart-labs/02-lab-guide/module-04-register-assets-into-zones.md#242-register-the-assets) should be rephrased to remove _assets will automatically get discovered_ because there is no auto-discovery for this zone.

The two pictures show also "Discovery status = Scheduled" although it should be "Discovery status = Disabled" for this zone _oda-misc-zone_.

Open module-03-organize-your-data-lake.md section 3.3.2 and module-04-register-assets-into-zones.md sections 2.3.2 and 2.4.2. Verify the oda-misc-zone discovery setting, then update the two descriptions and the related images so they show discovery as disabled and no automatic asset discovery is implied.

Written by the indexing model from the issue text.