Merge pull request #8 from danieldmm/patch-1

Update gather_pdfs.py

Author: Dominika Tkaczyk

cermine-tools/src/python/gather_pdfs.py

@@ -39,4 +39,4 @@ def get_local_files(prefix):
 
 for pdf in pdfs:
     location = local_files[pdf]
-    shutil.copy(pumbed_path + "/" + location, xmls_path)
+    shutil.copy(pubmed_path + "/" + location, xmls_path)