runtime: Change some words and release notification

docs/02-for-app-authors/04-runtimes.md

@@ -27,6 +27,8 @@ Flathub hosts three major runtimes currently.
   August of every year. The release schedule can be found on [Gitlab](https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/wikis/Releases)
   and announcements of new major version releases are made on
   [Flathub Discourse](https://discourse.flathub.org/c/announcements/6).
+  Release notifications are also available by subscribing to releases
+  via Gitlab notifications or via the RSS link in the [releases page](https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/releases).
 
   The Freedesktop platform (`org.freedesktop.Platform` and
   `org.freedesktop.Sdk`) provides strict ABI/API stability in a major

docs/02-for-app-authors/06-maintenance.md

@@ -11,7 +11,7 @@ and tested.
 
 Maintainers should try to update the application's runtime whenever
 feasible and ensure that it does not rely on an end-of-life (EOL)
-runtime. The runtime support policies can be found [here](/docs/for-app-authors/runtimes#currently-hosted-runtimes).
+runtime. They should also be aware of the [runtime support policies](/docs/for-app-authors/runtimes#currently-hosted-runtimes).
 
 ## The repository