Apply suggestions from code review

Co-authored-by: Daniel Vila Suero <[email protected]>

argilla-server/docker/argilla-hf-spaces/README.md

@@ -16,13 +16,13 @@ Whether you are working on monitoring and improving complex **generative tasks**
 
 ### Environment variables
 
-Apart from the common environment variables defined in docs, the docker image provides a set of variables to simplify the server startup:
+Besides the common environment variables defined in docs, this Docker image provides a set of variables to simplify the server startup:
 
 - `USERNAME`: If provided, the owner username. This can be combined with HF OAuth to define the argilla server owner (Default to `$SPACE_AUTHOR_NAME`).
 
 - `PASSWORD`: If provided, the owner password. If `USERNAME` and `PASSWORD` are provided, the owner user will be created with these credentials on the server startup (Default: `""`).
 
-- `API_KEY`: The default user api key to user. If API_KEY is not provided, a new random api key will be generated (Default: `""`).
+- `API_KEY`: If provided, the owner api key. When `USERNAME` and `PASSWORD` are provided and `API_KEY` is empty, a new random value will be generated (Default: `""`).
 
 - `REINDEX_DATASET`: If `true` or `1`, the datasets will be reindexed in the search engine. This setting must be kept enabled when running in HF spaces (Default: `1`).