Add speakers to _data/people.yml

Author: pmonfort

_data/people.yml

@@ -217,3 +217,15 @@ joaquin_tomas:
 jonathan_javiel:
   name: Jonathan Javiel
   github: jonathanJ7
+
+enzo_diaz:
+  name: Enzo Diaz
+  github: enzodiaz25
+
+svyatoslav_kryukov:
+  name: Svyatoslav Kryukov
+  github: skryukov
+
+vladimir_dementyev:
+  name: Vladimir Dementyev
+  github: palkan