Update README.md

Mention rename, point to current maintained API spec.

README.md

@@ -1,12 +1,3 @@
 # Rumble Network Discovery API
 
-This repository contains a copy of the Rumble OpenAPI Specification (v3) and related files.
-
-Interactive documentation can be found at https://app.swaggerhub.com/apis-docs/RumbleDiscovery/Rumble
-
-For offline use, we provide a [PDF version](https://raw.githubusercontent.com/RumbleDiscovery/rumble-api/main/rumble-api.pdf) and a downloadable [zip file with swagger-ui bundled](https://raw.githubusercontent.com/RumbleDiscovery/rumble-api/main/rumble-api.zip).
-
-The OpenAPI generator can be used to create client stubs for most languages:
- - https://openapi-generator.tech/
-
-Please see the [offical documentation](https://www.rumble.run/docs/organization-api/) for additional information.
+Rumble Network Discovery is now called runZero. Please see https://github.com/runZeroInc/runzero-api for current API information.