error ods_tag function

When I tried to run the function, I got the error:  'open_data_search_parallel' is not an exported object from 'namespace:oddpub'

oddpub project mentions multisession processing works like this:

```
future::plan(multisession)
progressr::handlers(global = TRUE)
open_data_results <- oddpub::open_data_search(pdf_text_sentences, screen_das = "extra")
```

