Update README.md

Author: marinakennedy

README.md

@@ -35,5 +35,5 @@ Then, open <http://localhost:8000> in your web browser.
 💬 [Join](https://discord.gg/65mah7ZZsG) the official GA Discord server\
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 for the Google Analytics Developer Newsletter\
-📄 [Explore](https://developers.google.com/analytics/) GA4 developer
+📄 [Explore](https://developers.google.com/analytics/) GA developer
 documentation