docs: Add use citations for QCD instantons and charged lepton flavor …

…violation (#1329)

* Add use citation from 'How to discover QCD Instantons at the LHC'
   - c.f. https://inspirehep.net/literature/1836890
* Add use citation from 'Charged Lepton Flavor Violation at the EIC'
   - c.f. https://inspirehep.net/literature/1846026

docs/bib/use_citations.bib

@@ -1,3 +1,16 @@
+% 2021-02-11
+@article{Cirigliano:2021img,
+    author = "Cirigliano, Vincenzo and Fuyuto, Kaori and Lee, Christopher and Mereghetti, Emanuele and Yan, Bin",
+    title = "{Charged Lepton Flavor Violation at the EIC}",
+    eprint = "2102.06176",
+    archivePrefix = "arXiv",
+    primaryClass = "hep-ph",
+    reportNumber = "LA-UR-21-20531",
+    month = "2",
+    year = "2021",
+    journal = ""
+}
+
 % 2021-01-06
 @article{Fuks:2021wpe,
     author = "Araz, Jack Y. and others",
@@ -13,6 +26,18 @@ @article{Fuks:2021wpe
     year = "2021"
 }
 
+% 2020-12-16
+@inproceedings{Amoroso:2020zrz,
+    author = "Amoroso, Simone and Kar, Deepak and Schott, Matthias",
+    title = "{How to discover QCD Instantons at the LHC}",
+    booktitle = "{Topological Effects in the Standard Model: Instantons, Sphalerons and Beyond at LHC}",
+    eprint = "2012.09120",
+    archivePrefix = "arXiv",
+    primaryClass = "hep-ph",
+    month = "12",
+    year = "2020"
+}
+
 % 2020-12-15
 @inproceedings{Alguero:2020buz,
     author = {Alguero, Ga\"el and Heisig, Jan and Khosa, Charanjit K. and Kraml, Sabine and Kulkarni, Suchita and Lessa, Andre and Neuhuber, Philipp and Reyes-Gonz\'alez, Humberto and Waltenberger, Wolfgang and Wongel, Alicia},