fix multi-line links

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

docs/releases/v1.15.0.md

@@ -27,8 +27,7 @@ native dependency, and as such needs to be built during `yarn` installation, on
 the exact architecture that it then executes on. For those who compile and run
 Backstage on stripped-down environments, you will want to ensure that you have
 the build basics present, e.g. `build-essential` or similar corresponding to
-your operating system of choice. The `isolated-vm` repo has [some further
-information](https://github.com/laverdet/isolated-vm#requirements) about the
+your operating system of choice. The `isolated-vm` repo has [some further information](https://github.com/laverdet/isolated-vm#requirements) about the
 build environment requirements.
 
 There is a [CVE-2022-39266](https://www.cve.org/CVERecord?id=CVE-2022-39266)
@@ -65,8 +64,7 @@ covers of your catalog instance, finding those pesky unprocessed entities that
 may be stuck in limbo because of an otherwise tricky-to-debug validation issue
 or similar.
 
-Check out [the plugin’s
-README](https://github.com/backstage/backstage/blob/master/plugins/catalog-unprocessed-entities/README.md)
+Check out [the plugin’s README](https://github.com/backstage/backstage/blob/master/plugins/catalog-unprocessed-entities/README.md)
 for details and installation instructions.
 
 Contributed by [@alde](https://github.com/alde) in
@@ -176,8 +174,7 @@ Contributed by [@sblausten](https://github.com/sblausten) in
 
 We recommend that you keep your Backstage project up to date with this latest
 release. For more guidance on how to upgrade, check out the documentation for
-[keeping Backstage
-updated](https://backstage.io/docs/getting-started/keeping-backstage-updated).
+[keeping Backstage updated](https://backstage.io/docs/getting-started/keeping-backstage-updated).
 
 ## Links and References
 
@@ -185,11 +182,9 @@ Below you can find a list of links and references to help you learn about and
 start using this new release.
 
 - [Backstage official website](https://backstage.io/),
-  [documentation](https://backstage.io/docs/), and [getting started
-  guide](https://backstage.io/docs/getting-started/)
+  [documentation](https://backstage.io/docs/), and [getting started guide](https://backstage.io/docs/getting-started/)
 - [GitHub repository](https://github.com/backstage/backstage)
-- Backstage's [versioning and support
-  policy](https://backstage.io/docs/overview/versioning-policy)
+- 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/v1.15.0-changelog.md)