🔧 add .editorconfig

Author: Batalex

.editorconfig

@@ -0,0 +1,18 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# 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,py}]
+charset = utf-8
+indent_style = space
+indent_size = 4
+
+# Matches the exact files either package.json or .travis.yml
+[{package.json,.circleci/config.yml}]
+indent_style = space
+indent_size = 2