fixes incorrect or missing documentation for ES_USE_SSL, ES_VERIFY_CERTS, and ES_API_KEY

Author: Bennett Patrick Brixen

README.md

@@ -205,8 +205,9 @@ You can customize additional settings in your `.env` file:
 |------------------------------|--------------------------------------------------------------------------------------|--------------------------|---------------------------------------------------------------------------------------------|
 | `ES_HOST`                    | Hostname for external Elasticsearch/OpenSearch.                                      | `localhost`              | Optional                                                                                    |
 | `ES_PORT`                    | Port for Elasticsearch/OpenSearch.                                                   | `9200` (ES) / `9202` (OS)| Optional                                                                                    |
-| `ES_USE_SSL`                 | Use SSL for connecting to Elasticsearch/OpenSearch.                                  | `false`                  | Optional                                                                                    |
-| `ES_VERIFY_CERTS`            | Verify SSL certificates when connecting.                                             | `false`                  | Optional                                                                                    |
+| `ES_USE_SSL`                 | Use SSL for connecting to Elasticsearch/OpenSearch.                                  | `true`                   | Optional                                                                                    |
+| `ES_VERIFY_CERTS`            | Verify SSL certificates when connecting.                                             | `true`                   | Optional                                                                                    |
+| `ES_API_KEY`                 | API Key for external Elasticsearch/OpenSearch.                                       | N/A                      | Optional                                                                                    |
 | `STAC_FASTAPI_TITLE`         | Title of the API in the documentation.                                               | `stac-fastapi-<backend>` | Optional                                                                                    |
 | `STAC_FASTAPI_DESCRIPTION`   | Description of the API in the documentation.                                         | N/A                      | Optional                                                                                    |
 | `STAC_FASTAPI_VERSION`       | API version.                                                                         | `2.1`                    | Optional                                                                                    |