Edit release notes for v23.1.0-alpha.8 for clarity on mux rangefeed (c…

…ockroachdb#18212)

src/current/_includes/releases/v23.1/v23.1.0-alpha.8.md

@@ -14,7 +14,7 @@ Release Date: March 27, 2023
 
 <h3 id="v23-1-0-alpha-8-{{-site.data.products.enterprise-}}-edition-changes">{{ site.data.products.enterprise }} edition changes</h3>
 
-- Enabled the `changefeed.mux_rangefeed.enabled` [cluster setting](https://www.cockroachlabs.com/docs/v23.1/cluster-settings) for MuxRangeFeed clients to increase the efficiency when running against large-scale workloads. [#97957][#97957]
+- The MuxRangefeed client, which is enabled with the `changefeed.mux_rangefeed.enabled` [cluster setting](https://www.cockroachlabs.com/docs/v23.1/cluster-settings), is now more efficient when running against large-scale workloads. [#97957][#97957]
 - The `server.oidc_authentication.claim_json_key` [cluster setting](https://www.cockroachlabs.com/docs/v23.1/cluster-settings) for DB Console SSO now accepts list-valued token claims. [#98522][#98522]
 - Added the `WITH` key_column option to override the message metadata key for [changefeeds](https://www.cockroachlabs.com/docs/v23.1/changefeed-examples). This changes the key hashed to determine Kafka partitions. It does not affect the output of `key_in_value` or the domain of the per-key ordering guarantee. [#98806][#98806]
 - The [Node Map](https://www.cockroachlabs.com/docs/v23.1/ui-cluster-overview-page#node-map-enterprise) now shows normalized CPU usage. [#98225][#98225]