Tweaks

- Name "Sourcegraph REST API"
- Path `api/openapi`
- Script `pnpm openapi:watch`
- Load OpenAPI spec from the repo

Author: olafurpg

docs/api/index.mdx

@@ -4,3 +4,4 @@ Sourcegraph exposes the following APIs:
 
 - [Sourcegraph GraphQL API](/api/graphql/), for accessing data stored or computed by Sourcegraph
 - [Sourcegraph Stream API](/api/stream_api/), for consuming search results as a stream of events
+- [Sourcegraph REST API](/api/openapi/), to explore the work-in-progress Cody API

package.json

@@ -6,7 +6,8 @@
 		"dev": "next dev",
 		"build": "next build",
 		"start": "next start",
-		"lint": "next lint"
+		"lint": "next lint",
+		"openapi:watch": "./scripts/openapi-watch.sh"
 	},
 	"browserslist": "defaults, not ie <= 11",
 	"dependencies": {