Add .editorconfig

.editorconfig

@@ -0,0 +1,14 @@
+; This file is for unifying the coding style for different editors and IDEs.
+; More information at http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{yml,yaml}]
+indent_size = 2

.gitattributes

@@ -3,7 +3,8 @@
 /.github export-ignore
 /.gitattributes export-ignore
 /.gitignore export-ignore
-/.php_cs.dist export-ignore
+/.editorconfig export-ignore
+/.php-cs-fixer.dist.php export-ignore
 /docs export-ignore
 /phpunit.xml.dist export-ignore
 /psalm.xml export-ignore