address PR review feedback on v1.51.0 release notes

Signed-off-by: benjdlambert <ben@blam.sh>

docs/releases/v1.51.0.md

@@ -26,7 +26,7 @@ The default allowed patterns for CIMD and DCR in `@backstage/plugin-auth-backend
 
 ### **BREAKING**: Cleaned up `PolicyQueryUser` type
 
-The `token` and `expiresInSeconds` fields have been removed from `PolicyQueryUser` in `@backstage/plugin-permission-node`. These were previously deprecated in favor of `credentials` with `coreServices.auth`. The `identity` field has been deprecated. The permission backend no longer calls `auth.getPluginRequestToken()` during policy evaluation, removing one service-to-service round-trip per permission check. A new `CachedUserInfoService` with a 5-second TTL cache and in-flight request coalescing has been added to reduce repeated user info lookups.
+The `token` and `expiresInSeconds` fields have been removed from `PolicyQueryUser` in `@backstage/plugin-permission-node`. These were previously deprecated in favor of `credentials` with `coreServices.auth`. The `identity` field has been deprecated. A new `CachedUserInfoService` with a 5-second TTL cache and in-flight request coalescing has been added to reduce repeated user info lookups.
 
 ### **BREAKING**: Catalog entity pagination excludes entities without sort field
 
@@ -118,7 +118,7 @@ Several performance improvements have been made to the catalog backend:
 - The `catalog_entities_count` metric now shares a single cached query between Prometheus and OpenTelemetry gauges.
 - A missing index on `relations.target_entity_ref` has been added, fixing full sequential scans on orphan deletion, entity ancestry, and eager pruning queries.
 - Incremental ingestion `WHERE ref IN (...)` queries now use `= ANY($1)` with a single array parameter to reduce prepared statement bloat.
-- A new migration removes duplicate rows from the `search` table, creates covering indices, and adds a `UNIQUE` constraint on `(entity_id, key, value)`. **For large installations**, it is recommended to run the provided SQL commands before deploying — see the [changelog](https://github.com/backstage/backstage/tree/master/docs/releases/v1.51.0-changelog.md) for details.
+- A new migration removes duplicate rows from the `search` table, creates covering indices, and adds a `UNIQUE` constraint on `(entity_id, key, value)`. **For large installations**, it is recommended to run the provided SQL commands before deploying — see the changelog for details.
 
 ### New ESLint `no-self-package-imports` rule
 
@@ -188,7 +188,9 @@ The `catalog.stitchingStrategy.mode: 'immediate'` setting has been deprecated. A
 
 This release does not contain any security fixes.
 
-Big shoutout to all 35 of you amazing folks who chipped in on this release: [@AdityaK60](https://github.com/AdityaK60), [@Ferin79](https://github.com/Ferin79), [@Naycon](https://github.com/Naycon), [@Swiftwork](https://github.com/Swiftwork), [@UsainBloot](https://github.com/UsainBloot), [@adobejmong](https://github.com/adobejmong), [@alde](https://github.com/alde), [@aurnik](https://github.com/aurnik), [@awanlin](https://github.com/awanlin), [@benjidotsh](https://github.com/benjidotsh), [@cdedreuille](https://github.com/cdedreuille), [@copilot-swe-agent](https://github.com/copilot-swe-agent), [@davidjosefson-neo4j](https://github.com/davidjosefson-neo4j), [@deepthi-28](https://github.com/deepthi-28), [@djamaile](https://github.com/djamaile), [@drodil](https://github.com/drodil), [@dyatko](https://github.com/dyatko), [@elaine-mattos](https://github.com/elaine-mattos), [@emmaindal](https://github.com/emmaindal), [@erikmiller-gusto](https://github.com/erikmiller-gusto), [@etienne-napoleone](https://github.com/etienne-napoleone), [@ganievs](https://github.com/ganievs), [@hudsonb](https://github.com/hudsonb), [@iamEAP](https://github.com/iamEAP), [@its-mitesh-kumar](https://github.com/its-mitesh-kumar), [@jabrks](https://github.com/jabrks), [@johnmcollier](https://github.com/johnmcollier), [@jtbry](https://github.com/jtbry), [@karthikjeeyar](https://github.com/karthikjeeyar), [@mtlewis](https://github.com/mtlewis), [@officialasishkumar](https://github.com/officialasishkumar), [@rtar](https://github.com/rtar), [@secustor](https://github.com/secustor), [@sriharsha9618](https://github.com/sriharsha9618), [@wss-dogara](https://github.com/wss-dogara)
+## Contributors
+
+Big shoutout to all 34 of you amazing folks who chipped in on this release: [@AdityaK60](https://github.com/AdityaK60), [@Ferin79](https://github.com/Ferin79), [@Naycon](https://github.com/Naycon), [@Swiftwork](https://github.com/Swiftwork), [@UsainBloot](https://github.com/UsainBloot), [@adobejmong](https://github.com/adobejmong), [@alde](https://github.com/alde), [@aurnik](https://github.com/aurnik), [@benjidotsh](https://github.com/benjidotsh), [@cdedreuille](https://github.com/cdedreuille), [@copilot-swe-agent](https://github.com/copilot-swe-agent), [@davidjosefson-neo4j](https://github.com/davidjosefson-neo4j), [@deepthi-28](https://github.com/deepthi-28), [@djamaile](https://github.com/djamaile), [@drodil](https://github.com/drodil), [@dyatko](https://github.com/dyatko), [@elaine-mattos](https://github.com/elaine-mattos), [@emmaindal](https://github.com/emmaindal), [@erikmiller-gusto](https://github.com/erikmiller-gusto), [@etienne-napoleone](https://github.com/etienne-napoleone), [@ganievs](https://github.com/ganievs), [@hudsonb](https://github.com/hudsonb), [@iamEAP](https://github.com/iamEAP), [@its-mitesh-kumar](https://github.com/its-mitesh-kumar), [@jabrks](https://github.com/jabrks), [@johnmcollier](https://github.com/johnmcollier), [@jtbry](https://github.com/jtbry), [@karthikjeeyar](https://github.com/karthikjeeyar), [@mtlewis](https://github.com/mtlewis), [@officialasishkumar](https://github.com/officialasishkumar), [@rtar](https://github.com/rtar), [@secustor](https://github.com/secustor), [@sriharsha9618](https://github.com/sriharsha9618), [@wss-dogara](https://github.com/wss-dogara)
 
 ## Upgrade path
 
@@ -202,7 +204,6 @@ Below you can find a list of links and references to help you learn about and st
 - [GitHub repository](https://github.com/backstage/backstage)
 - Backstage's [versioning and support policy](https://backstage.io/docs/overview/versioning-policy)
 - [Community Discord](https://discord.gg/backstage-687207715902193673) for discussions and support
-- [Changelog](https://github.com/backstage/backstage/tree/master/docs/releases/v1.51.0-changelog.md)
 - Backstage [Demos](https://backstage.io/demos), [Blog](https://backstage.io/blog), [Roadmap](https://backstage.io/docs/overview/roadmap) and [Plugins](https://backstage.io/plugins)
 
 Sign up for our [newsletter](https://spoti.fi/backstagenewsletter) if you want to be informed about what is happening in the world of Backstage.