docs: write about EditorConfig

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

diff --git a/Documentation/howto-contribute.txt b/Documentation/howto-contribute.txt
index 97f3ce1e1600b08fccb686eeaf14d1ca73bf502d..80c2e9f0a1b2bc86176f77309c7610d4edfd1ec1 100644 (file)
--- a/Documentation/howto-contribute.txt
+++ b/Documentation/howto-contribute.txt
@@ -188,6 +188,9 @@ Coding Style
          multiple lines. In case the shorthand does not look good on one line
          use the normal "if () else" syntax.
 
+       * To avoid whitespace errors, consider installing an EditorConfig plugin
+         (https://editorconfig.org/) into your favorite editor or IDE.
+
 Options
 
        * The rule of thumb for options is that once they exist, you may not