Update links

Signed-off-by: Axel Köhler <9337156+axdotl@users.noreply.github.com>

microsite/data/plugins/backstage-kubernetes.yaml

@@ -4,7 +4,7 @@ author: Spotify
 authorUrl: https://github.com/spotify
 category: Core Feature
 description: Monitor all your service's deployments at a glance, even across clusters.
-documentation: https://backstage.io/docs/features/kubernetes/overview
+documentation: https://backstage.io/docs/features/kubernetes/
 iconUrl: img/backstage-k8s.svg
 npmPackageName: '@backstage/plugin-kubernetes'
 order: 4

microsite/data/plugins/backstage-search-platform.yaml

@@ -4,7 +4,7 @@ author: Spotify
 authorUrl: https://github.com/spotify
 category: Core Feature
 description: A composable and extensible search platform built to fit your organization’s needs and find information quickly.
-documentation: https://backstage.io/docs/features/search/search-overview
+documentation: https://backstage.io/docs/features/search/
 iconUrl: img/backstage-search-platform.svg
 npmPackageName: '@backstage/plugin-search'
 order: 5

microsite/data/plugins/backstage-software-catalog.yaml

@@ -4,7 +4,7 @@ author: Spotify
 authorUrl: https://github.com/spotify
 category: Core Feature
 description: Manage all your services and software components, all in one place.
-documentation: https://backstage.io/docs/features/software-catalog/software-catalog-overview
+documentation: https://backstage.io/docs/features/software-catalog/
 iconUrl: img/backstage-software-catalog.svg
 npmPackageName: '@backstage/plugin-catalog'
 order: 1

microsite/data/plugins/backstage-software-templates.yaml

@@ -4,7 +4,7 @@ author: Spotify
 authorUrl: https://github.com/spotify
 category: Core Feature
 description: Create new software components in just a few steps, with your standards built-in (Scaffolder).
-documentation: https://backstage.io/docs/features/software-templates/software-templates-index
+documentation: https://backstage.io/docs/features/software-templates/
 iconUrl: img/backstage-software-templates.svg
 npmPackageName: '@backstage/plugin-scaffolder'
 order: 2

microsite/data/plugins/backstage-techdocs.yaml

@@ -4,7 +4,7 @@ author: Spotify
 authorUrl: https://github.com/spotify
 category: Core Feature
 description: A docs-like-code solution to technical documentation. Write your docs right alongside your code.
-documentation: https://backstage.io/docs/features/techdocs/techdocs-overview
+documentation: https://backstage.io/docs/features/techdocs/
 iconUrl: img/backstage-techdocs.svg
 npmPackageName: '@backstage/plugin-techdocs'
 order: 3