Added EditorConfig file

.editorconfig

@@ -0,0 +1,17 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+
+# Matches multiple files with brace expansion notation
+# Set default charset
+[*.{js,rb,erb}]
+charset = utf-8
+indent_style = space
+indent_size = 2