vercel deployments (#850)

Author: hwchase17

docs/deployments.md

@@ -27,4 +27,8 @@ This is heavily influenced by James Weaver's [excellent examples](https://huggin
 
 This repo serves as a template for how deploy a LangChain with [Beam](https://beam.cloud).
 
-It implements a Question Answering app and contains instructions for deploying the app as a serverless REST API.
+It implements a Question Answering app and contains instructions for deploying the app as a serverless REST API.
+
+## [Vercel](https://github.com/homanp/vercel-langchain)
+
+A minimal example on how to run LangChain on Vercel using Flask.