Steps:

1. Create a pdf-loader folder in the repo and add an unstructured_loader.pdf file
2. Write the file using unstructured's docs to take as input a pdf and as output a markdown document (if that's what they suggest)

Sidenote: you should create a folder in your repo called data/ and store the actual pdf there so that you can retrieve it from the code. You should then upload the result as a markdown document in the same folder. If git starts tracking it then add data/ to the gitignore. it might already be there though.