Conventions & code formating

.editorconfig

@@ -0,0 +1,16 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+max_line_length = 100
+insert_final_newline = true
+trim_trailing_whitespace = true
+quote_type = single
+indent_style = tab
+indent_size = 4
+
+[*.{json,yml,yaml}]
+indent_style = space
+indent_size = 2
+insert_final_newline = false