Update openapi.yaml

Author: logankilpatrick

openapi.yaml

@@ -7342,7 +7342,7 @@ components:
  x-oaiExpandable: true
  file_ids:
  description: |
- A list of [File](/docs/api-reference/files) IDs attached to this assistant. There can be a maximum of 20 files attached to the assistant. Files are ordered by their creation date in ascending order. If a file was previosuly attached to the list but does not show up in the list, it will be deleted from the assistant.
+ A list of [File](/docs/api-reference/files) IDs attached to this assistant. There can be a maximum of 20 files attached to the assistant. Files are ordered by their creation date in ascending order. If a file was previously attached to the list but does not show up in the list, it will be deleted from the assistant.
  default: []
  type: array
  maxItems: 20