Update README.md

Bibliography refference added

README.md

@@ -1,3 +1,15 @@
 ---
 license: gpl-3.0
 ---
+
+@inproceedings{Znotins-Barzdins:2020:BalticHLT,
+  author = "A. Znotins and G. Barzdins",
+  title = "LVBERT: Transformer-Based Model for Latvian Language Understanding",
+  year = 2020,
+  booktitle = "Human Language Technologies - The Baltic Perspective",
+  publisher = "IOS Press",
+  volume = 328,
+  pages = "111-115",
+  doi = "10.3233/FAIA200610",
+  url = "http://ebooks.iospress.nl/volumearticle/55531"
+}