fix: change relative link in readme for pypi

Author: untitaker

README.md

@@ -108,5 +108,6 @@ with events by default. You need to explicitly enable this behavior with the
 
 ## Integrations
 
-Head over to [the other pages](./docs/) to check out integrations, which use
-these low-level APIs so you don't have to.
+Head over to [the other
+pages](https://github.com/getsentry/sentry-python/tree/master/docs) to check
+out integrations, which use these low-level APIs so you don't have to.