docs fix

Author: lukaszsocha2

docs/usage/files.md

@@ -199,11 +199,9 @@ without aborting the entire upload, and failed parts can then be retried.
 
 Since box-python-sdk 3.11.0 release, by default the SDK uses upload urls provided in response
 when creating a new upload session. This allowes to always upload your content to the closest Box data center and
-can significantly improve upload speed. You can alwys disable this feature and always use base upload url by 
+can significantly improve upload speed. You can always disable this feature and always use base upload url by 
 setting `use_upload_session_urls` flag to `False` when creating upload session.
 
-```python
-
 ### Automatic Uploader
 
 Since box-python-sdk 3.7.0 release, automatic uploader uses multiple threads, which significantly speeds up the upload process.