Add working link

Author: classiqdor

.internal/url_allow_list.txt

@@ -1,3 +1,4 @@
 https://pubmed.ncbi.nlm.nih.gov/8604144/
 https://users.cs.fiu.edu/~prabakar/ugc/2022/QC_notes/AndrewChilds_qa.pdf
 https://pytorch.org/
+https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/50/e3sconf_ses18_04011.pdf