Update README.md

Added news item.

Author: JayHoltslander

README.md

@@ -6,6 +6,17 @@ Structured Data is hard when you're starting out. Conflicting info. Old outdated
 
 
 ### Structured Data News
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+<strong>Aug 15th 2022</strong> (View)
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+Google has added a clarification in its product structured data documentation around GTIN usage. <a href="https://developers.google.com/search/docs/advanced/structured-data/product">Read more</a>!
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 <details>
 <summary>
 <strong>Dec 15th 2020</strong> (View)