Small correction for RU locale.

In Russian this section is rather called 'Образование' (literally:
education) containing high school, certificates and courses, while
'Обучение' (literally: training) is a process of improving skills.

Signed-off-by: Lesya Novaselskaya <shams@airpost.net>

src/lang/ru.js

@@ -4,7 +4,7 @@ const ru = {
     headings: {
         contact: "Контакты",
         experience: "Опыт",
-        education: "Обучение",
+        education: "Образование",
         skills: "Навыки",
         about: "Обо мне"
     }