Update README.md

Author: 6

README.md

@@ -13,7 +13,7 @@ Clone the repo and install dependencies.
 You will need to sign up for two services if you haven't already:
 
 - [Cloudflare](https://www.cloudflare.com): Where our worker will be hosted.
-- [Upstash](https://upstash.com): Cache is stored using Upstash's redis-over-HTTP service. Depending on your usage, you may try replacing this with Cloudflare KV instead which is eventually consistent but will likely provide better read latency.
+- [Upstash](https://upstash.com): Cache is stored using Upstash's redis-over-HTTP service. Depending on your usage, you may try replacing this with [Cloudflare KV](https://developers.cloudflare.com/workers/runtime-apis/kv/) instead which is eventually consistent but will likely provide better read latency.
 
 Both Cloudflare and Upstash have generous free plans.