Update index.mdx

- add missing word
- improve wording

Author: gabrieltaylor

docs/organization/integrations/deployment/heroku/index.mdx

@@ -30,7 +30,7 @@ Whether you’re using the add-on or not, you’ll still need to [install the SD
 
 ### Configure Releases
 
-Whether use the add-on or configure Sentry yourself, you’ll also likely want to grant quick access to your dyno metadata, which will allow Sentry to automatically pick up the git version of your application.
+Whether you use the add-on or configure Sentry yourself, you’ll also likely want to grant access to your dyno metadata, which will allow Sentry to automatically pick up the git SHA of the release your dyno is running.
 
 To do this, enable the `runtime-dyno-metadata` feature: