docs: fixed docs link (#37)

Author: YogliB

README.md

@@ -15,7 +15,7 @@ practices.</p>
 
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-[**Read The Docs**](https://testing-library.com/svelte) |
+[**Read The Docs**](https://testing-library.com/docs/svelte-testing-library/intro) |
 [Edit the docs](https://github.com/alexkrolick/testing-library-docs)
 
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