[Minor] Fix the broken link for Adopters (#1792)

This PR fixes the broken link for adopters page in the repo

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Pavan Navarathna <6504783+pavannd1@users.noreply.github.com>

README.md

@@ -96,7 +96,7 @@ UTC, where we discuss ongoing interesting features, issues, and pull requests.
 Come join us! Everyone is welcome! 🙌 (Zoom link is pinned on Slack)
 
 If you are currently using Kanister, we would love to hear about it! Feel free
-to add your organization to the [`ADOPTERS.md`](adopters.md) by submitting a
+to add your organization to the [`ADOPTERS.md`](ADOPTERS.md) by submitting a
 pull request.
 
 ## Code of Conduct