For everyone getting this warning from W3C validator.
Text run is not in Unicode Normalization Form C...
Correct transliteration if you enter the word directly.
Missing transliteration for copy pasted word from PDF.
Upload the zip file from this plugin on your plugins page or search for Normalizer and install it directly from the repository.
Activate the plugin through 'Plugins in WordPress.
The plugin just adds the normalization if there are problematic characters.
Furthermore it does do the normalization before saving, so you don't see anything.
The following people have contributed to this plugin..
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
Read more