Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Phil Varner

README.md

@@ -610,7 +610,7 @@ There are some settings that should be reviewed and updated as needeed in the se
 | CORS_METHODS                     | Configure whether or not to send the `Access-Control-Allow-Methods` CORS header. Expects a comma-delimited string, e.g., `GET,PUT,POST`.                                                                                                                                        | `GET,HEAD,PUT,PATCH,POST,DELETE`                                                     |
 | CORS_HEADERS                     | Configure whether or not to send the `Access-Control-Allow-Headers` CORS header. Expects a comma-delimited string, e.g., `Content-Type,Authorization`. If not specified, defaults to reflecting the headers specified in the request’s `Access-Control-Request-Headers` header. | none                                                                                 |
 | ENABLE_COLLECTIONS_AUTHX         | Enables support for hidden `_collections` query parameter / field when set to `true`.                                                                                                                                                                                                              | none (not enabled)                                                                                 |
-| ENABLE_THUMBNAILS         | Enables support for presigned thumnails.                                                                                                                                                                                                              | none (not enabled)                                                                                |
+| ENABLE_THUMBNAILS         | Enables support for presigned thumbnails.                                                                                                                                                                                                              | none (not enabled)                                                                                |
 | ENABLE_INGEST_ACTION_TRUNCATE         | Enables support for ingest action "truncate".                                                                                                                                                                                                              | none (not enabled)                                                                                |
 
 Additionally, the credential for OpenSearch must be configured, as decribed in the