Added the repository settings

.editorconfig

@@ -0,0 +1,13 @@
+# https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+indent_size = 4
+trim_trailing_whitespace = false