packages,plugins: add package documentation

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

plugins/gitops-profiles/api-report.md

@@ -230,6 +230,4 @@ export interface StatusResponse {
   // (undocumented)
   status: string;
 }
-
-// (No @packageDocumentation comment for this package)
 ```

plugins/gitops-profiles/src/index.ts

@@ -14,6 +14,12 @@
  * limitations under the License.
  */
 
+/**
+ * A Backstage plugin that helps you manage GitOps profiles
+ *
+ * @packageDocumentation
+ */
+
 export {
   gitopsProfilesPlugin,
   gitopsProfilesPlugin as plugin,