remove fork readme info

README.md

@@ -4,38 +4,6 @@
   <a href="https://github.com/actions/setup-node/actions?query=workflow%3Abuild-test"><img alt="build-test status" src="https://github.com/actions/setup-node/workflows/build-test/badge.svg"></a> <a href="https://github.com/actions/setup-node/actions?query=workflow%3Aversions"><img alt="versions status" src="https://github.com/actions/setup-node/workflows/versions/badge.svg"></a> <a href="https://github.com/actions/setup-node/actions?query=workflow%3Aproxy"><img alt="proxy status" src="https://github.com/actions/setup-node/workflows/proxy/badge.svg"></a> 
 </p>
 
-## About this fork
-This is a fork of the official GitHub [actions/setup-node](https://github.com/marketplace/actions/setup-node-js-environment) that checks common Node config files when picking the version of Node to use.
-
-### Example
-
-```yaml
-- name: Setup node
-  uses: guardian/actions-setup-node@main
-```
-
-It checks the following places:
-
-1. `.nvmrc`
-2. `engines.node` in `package.json`
-3. `.node-version`
-4. `.n-node-version`
-5. `.naverc`
-6. `.nodeenvrc`
-
-and finally the following environment variables:
-
-7. `NODE_VERSION`
-8. `NODIST_NODE_VERSION`
-
-> Behind the scenes, it uses [@ehmicky](https://github.com/ehmicky)'s [`preferred-node-version`](https://www.npmjs.com/package/) 😍.
-
-If it _still_ can't find anything, it falls back to the the original action's default behaviour (using the PATH version).
-
-_Below is the rest of the original readme…_
-
----
-
 This action sets by node environment for use in actions by:
 
 - optionally downloading and caching a version of node - npm by version spec and add to PATH