[fpv] Fix formal result page link
This PR fixes the FPV result summary page URL link.
Signed-off-by: Cindy Chen <chencindy@opentitan.org>
diff --git a/hw/_index.md b/hw/_index.md
index 057d383..3c43239 100644
--- a/hw/_index.md
+++ b/hw/_index.md
@@ -19,7 +19,7 @@
## Results of tool-flows
* [DV simulation summary results, with coverage (nightly)](https://reports.opentitan.org/hw/top_earlgrey/dv/summary.html)
-* [FPV summary results (nightly)](https://reports.opentitan.org/hw/top_earlgrey/fpv/summary.html)
+* [FPV summary results (nightly)](https://reports.opentitan.org/hw/top_earlgrey/formal/summary.html)
* [AscentLint summary results (nightly)](https://reports.opentitan.org/hw/top_earlgrey/lint/ascentlint/summary.html)
* [Verilator lint summary results (nightly)](https://reports.opentitan.org/hw/top_earlgrey/lint/verilator/summary.html)
* [Style lint summary results (nightly)](https://reports.opentitan.org/hw/top_earlgrey/lint/veriblelint/summary.html)