Update README.markdown

h4evr · web-flow · commit 9e40471d41dd · 2022-12-22T10:47:45.000Z
diff --git a/README.markdown b/README.markdown
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 YAML Parser for Javascript
 ==========================
 
+**WARNING:** This code is very old and unmaintained. Probably has security issues. You should not depend on it. Consider using a more recent lib.
+
 Author: Diogo Costa (<costa.h4evr@gmail.com>)
 
 Date: 8th August 2011
