Update readme.md

Added deprecation note.

Author: gvsg-rs

readme.md

@@ -1,15 +1,7 @@
 # Readyset Docs
 
-This repository contains the source files for the Readyset documentation available at [docs.readyset.io](https://docs.readyset.io/).
+Docs have been moved to a private repo. This repo will be archived.
 
 ## Suggest Improvements
 
 Want a topic added to the docs? Need additional details or clarification? See an error or other problem? Please [open an issue](https://github.com/readysettech/docs/issues).
-
-## Write Docs
-
-Contributing is easy. First, clone this repository. Next, run `npm install`. After that completes, then run `npm run dev`, which will fire up the website locally on port 3000. 
-
-If you want to make changes to content, simply go into the `pages` directory and you'll see the layout of our documentation corresponds to the file system. Make changes and submit a PR. 
-
-Merged PRs into `main` are automatically deployed!