Added retrying on 503 for new_doc
Added retrying on 503 for new_doc

githubs-google/curation,opensourcewatch/curation-scraper,githubs-google/curation,opensourcewatch/curation-scraper,opensourcewatch/opensourcewatch,opensourcewatch/opensourcewatch,githubs-google/curation,opensourcewatch/opensourcewatch,opensourcewatch/curation-scraper