Add editorconfig

.editorconfig

@@ -0,0 +1,17 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+trim_trailing_whitespace = true
+indent_style = tab
+
+# trim trailing whitespace breaks markdown in vscode
+[*.{diff,md}]
+trim_trailing_whitespace = false
+
+# use spaces in yml files
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2