Adding Valentin Bojinov to the contributors list
@@ -148,3 +148,4 @@ To accept, please:
| David Barda | | Tel-Aviv, Israel | 2019-10-14 |
| Bishnu Gopal Patro | | Pune, India | 2019-10-19 |
| Bartosz Czyzowski | | Jozefow, Poland | 2019-11-17 |
+| Valentin Bojinov | | Sofia, Bulgaria | 2020-04-01 |
