[Docs] Add Anyscale to frameworks (#20590)

Signed-off-by: Ricardo Decal <rdecal@anyscale.com>

docs/deployment/frameworks/anyscale.md

+---
+title: Anyscale
+---
+[](){ #deployment-anyscale }
+
+[Anyscale](https://www.anyscale.com) is a managed, multi-cloud platform developed by the creators of Ray.
+It hosts Ray clusters inside your own AWS, GCP, or Azure account, delivering the flexibility of open-source Ray
+without the operational overhead of maintaining Kubernetes control planes, configuring autoscalers, or managing observability stacks.
+When serving large language models with vLLM, Anyscale can rapidly provision [production-ready HTTPS endpoints](https://docs.anyscale.com/examples/deploy-ray-serve-llms) or [fault-tolerant batch inference jobs](https://docs.anyscale.com/examples/ray-data-llm).