Fixing links, adding missing redirect.

Author: Oxyjun

public/__redirects

@@ -1567,6 +1567,7 @@
 /hyperdrive/learning/query-caching/ /hyperdrive/configuration/query-caching/ 301
 /hyperdrive/learning/troubleshooting/ /hyperdrive/reference/troubleshooting/ 301
 /hyperdrive/changelog/ /hyperdrive/platform/release-notes/ 301
+/hyperdrive/configuration/connect-to-postgres/ /hyperdrive/examples/connect-to-postgres/ 301
 /hyperdrive/platform/changelog/ /hyperdrive/platform/release-notes/ 301
 /hyperdrive/learning/ /hyperdrive/configuration/ 301
 /hyperdrive/reference/metrics/ /hyperdrive/observability/metrics/ 301