Create .editorconfig (#404)

Author: Musa

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.{yml,yaml}]
+indent_size = 2

.gitattributes

@@ -2,6 +2,7 @@
 * eol=lf
 
 /tests export-ignore
+/.editorconfig export-ignore
 /.gitattributes export-ignore
 /.gitignore export-ignore
 /.travis.yml export-ignore