[i18n review comment] Country code reference is wrong. #192

[raised by aphillips]

https://www.w3.org/TR/dwbp/#ReuseVocabularies

Example 15 contains this citation:

 > The Library of Congress publishes lists of ISO 639 country codes as 
Linked Data (see [ISO639-1-LOC] for two-letter codes):

ISO 639-1 is a list of language codes, not country codes. The standard 
for country codes is ISO3166-1. Please either change the reference to 
ISO3166-1 (the change I18N WG would prefer) or change the text to say 
"language codes".