Add missing reference architecture links to by solution page

Author: thomas-desmond

src/content/docs/reference-architecture/by-solution.mdx

@@ -119,10 +119,12 @@ Architecture content for our developer platform.
 - [Serverless ETL pipelines](/reference-architecture/diagrams/serverless/serverless-etl/)
 - [Serverless global APIs](/reference-architecture/diagrams/serverless/serverless-global-apis/)
 - [Serverless image content management](/reference-architecture/diagrams/serverless/serverless-image-content-management/)
+- [Programmable Platforms](/reference-architecture/diagrams/serverless/programmable-platforms/)
 
 ##### Storage
 
 - [Egress-free object storage in multi-cloud setups](/reference-architecture/diagrams/storage/egress-free-storage-multi-cloud/)
 - [On-demand Object Storage Data Migration](/reference-architecture/diagrams/storage/on-demand-object-storage-migration/)
 - [Event notifications for storage](/reference-architecture/diagrams/storage/event-notifications-for-storage/)
 - [Storing User Generated Content](/reference-architecture/diagrams/storage/storing-user-generated-content/)
+- [Control and data plane architectural pattern for Durable Objects](/reference-architecture/diagrams/storage/durable-object-control-data-plane-pattern/)