Merge pull request #24753 from nate-double-u/24731-fix-.editorconfig-md

.editorconfig: turning off trim_trailing_whitespace for markdown files

Author: k8s-ci-robot

.editorconfig

@@ -5,6 +5,9 @@ charset = utf-8
 max_line_length = 80
 trim_trailing_whitespace = true
 
+[*.md]
+trim_trailing_whitespace = false
+
 [*.{css,html,js,json,sass,md,mmark,toml,yaml}]
 indent_style = space
 indent_size = 2