docs: update wording around harbor version testing

Co-authored-by: Toby Bellwood <[email protected]>

docs/releases/2.20.0.md

@@ -9,7 +9,7 @@ This release contains changes that you may need to be aware of. Read carefully b
 
 ### Harbor 2.1.x and earlier
 * This release removes the support for Harbor from the Lagoon API. If you're still using the Harbor support in the API, you should NOT upgrade until you have configured your `lagoon-remote` installations to use Harbor instead. See the documentation [here](https://docs.lagoon.sh/installing-lagoon/install-lagoon-remote) and read the section about Harbor.
-* We also recommend that if you're using Harbor version 2.1.x and earlier, that you upgrade this as soon as possible. Follow any instructions that Harbor recommend for upgrading. As of this release, `lagoon-remote` works with Harbor version 2.10.0 (helm chart version 1.14.0). [Lagoon will stop supporting Harbor 2.1.x and earlier in a future release](https://docs.lagoon.sh/releases/2.17.0/#harbor-21-and-earlier-support).
+* We also recommend that if you're using Harbor version 2.1.x and earlier, that you upgrade this as soon as possible. Follow any instructions that Harbor recommend for upgrading. As of this release, `lagoon-remote` has been tested up to Harbor version 2.10.0 (helm chart version 1.14.0). [Lagoon will stop supporting Harbor 2.1.x and earlier in a future release](https://docs.lagoon.sh/releases/2.17.0/#harbor-21-and-earlier-support).
 
 ## Deprecations