Update docs/observability/how_to_guides/tracing/upload_files_with_tra…

…ces.mdx

docs/observability/how_to_guides/tracing/upload_files_with_traces.mdx

@@ -23,7 +23,7 @@ The following features are available in the following SDK versions:
 - JS/TS SDK: >=0.2.5
   :::
 
-LangSmith supports uploading binary files (such as images, audio, videos, PDFs and CSVs) with your traces. This is particularly useful when working with LLM pipelines using multimodal inputs or outputs.
+LangSmith supports uploading binary files (such as images, audio, videos, PDFs, and CSVs) with your traces. This is particularly useful when working with LLM pipelines using multimodal inputs or outputs.
 
 In both the Python and TypeScript SDKs, attachments can be added to your traces by specifying the MIME type and binary content of each file.
 This guide explains how to define and trace attachments using the `Attachment` type in Python and `Uint8Array` / `ArrayBuffer` in TypeScript.