docs: clarify the endpoint a bit more

src/content/collaboration/documents/conversion.mdx

@@ -81,12 +81,13 @@ Specify how source document elements are mapped to ProseMirror nodes or marks, a
 
 ## /import-docx endpoint (experimental)
 
-The `/import-docx` endpoint enables the conversion of `docx` files into Tiptap’s JSON format. Users can POST documents to this endpoint and use various parameters to customize how different document elements are handled during the conversion process.
+The `/import-docx` endpoint enables the conversion of docx files into Tiptap's JSON format and allows for more docx-specific functions than the /import endpoint. Users can POST documents to this endpoint and use various parameters to customize how different document elements are handled during the conversion process.
 
 - **Method**: `POST`
 
 <Callout title="Alpha" variant="hint">
-  This feature is currently in alpha and available to all users with a Tiptap account.
+  This feature is currently in alpha and available to all users with a Tiptap account. Consider this
+  endpoint experimental and subject to change.
 </Callout>
 
 ### Required headers