minor typo fix (#36)

Co-authored-by: Pradyumna Singh Rathore <[email protected]>

README.md

@@ -260,7 +260,7 @@ Parameters
 - **output_dir** (Optional[str], optional):
   The directory to save the markdown output. Defaults to None.
 - **temp_dir** (str, optional):
-  The directory to store temporary files, defaults to some named folder in system's temp directory. If already exists, the contents will be deleted for zerox uses it.
+  The directory to store temporary files, defaults to some named folder in system's temp directory. If already exists, the contents will be deleted before zerox uses it.
 - **custom_system_prompt** (str, optional):
   The system prompt to use for the model, this overrides the default system prompt of zerox. Defaults to None.
   Generally it is not required unless you want some specific behaviour. When set, it will raise a friendly warning.
@@ -271,7 +271,7 @@ Parameters
 Returns
 
 - ZeroxOutput:
-  The markdown content generated by the model.
+  Contains the markdown content generated by the model and also some metadata (refer below).
 
 ### Example Output (Output from "azure/gpt-4o-mini"):