From 1c13c8bddceb4b05935c347daafc755e270f45e4 Mon Sep 17 00:00:00 2001
From: Philippe Proulx <eeppeliteloop@gmail.com>
Date: Thu, 3 Sep 2015 22:03:51 -0400
Subject: [PATCH] contrib-guide.md: add info about warning/error blocks

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
---
 contrib-guide.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/contrib-guide.md b/contrib-guide.md
index 5ae9079..3836684 100644
--- a/contrib-guide.md
+++ b/contrib-guide.md
@@ -88,8 +88,11 @@ Tip/note block:
 </div>
 ```
 
-Title should be `Tip:` for a tip and `Note:` for a note.
+Replace the `tip` class with `warn` for a warning block, and with `err`
+for an error message block (when JavaScript is needed but is disabled, etc.).
 
+Title should be `Tip:` for a tip, `Note:` for a note, `Warning:` for a
+warning, and `Error:` for an error.
 
 
 #### External links
-- 
2.34.1