rename docsite script to docs and update docs setup description

DOCUMENTATION.md

-We're building an improved documentation website. It's still in development and
-contributions will be really appreciated.
+Documentation is hosted at https://docs.openzeppelin.com/contracts.
 
 All of the content for the site is in this repository. The guides are in the
 [docs](/docs) directory, and the API Reference is extracted from comments in
@@ -9,11 +8,9 @@ repository you should be contributing to.
 [`solidity-docgen`](https://github.com/OpenZeppelin/solidity-docgen) is the
 program that extracts the API Reference from source code.
 
-The [`openzeppelin-docsite`](https://github.com/OpenZeppelin/openzeppelin-docsite)
-repository hosts the configuration for Docusaurus, the static site generator
-that we use.
+The [`docs.openzeppelin.com`](https://github.com/OpenZeppelin/docs.openzeppelin.com)
+repository hosts the configuration for the entire site, which includes
+documetation for all of the OpenZeppelin projects.
 
-To run the docsite locally you should run `npm run docsite start` on this
-repository. This will live reload as the guides are edited, but not with
-changes to the source code comments, for that you need to restart the server.
-This should be improved eventually (contributions welcome!).
+To run the docs locally you should run `npm run docs start` on this
+repository.

netlify.toml

 [build]
-command = "npm run docsite build"
+command = "npm run docs build"
 publish = "openzeppelin-docs/build/site"

package.json

@@ -13,7 +13,7 @@
     "compile": "scripts/compile.sh",
     "console": "truffle console",
     "coverage": "scripts/coverage.sh",
-    "docsite": "scripts/docsite.sh",
+    "docs": "scripts/docs.sh",
     "prepare-docs": "scripts/prepare-docs.sh",
     "lint": "npm run lint:js && npm run lint:sol",
     "lint:fix": "npm run lint:js:fix",

scripts/docsite.sh → scripts/docs.sh

 #!/usr/bin/env bash
 
 if [ "$1" != "build" -a "$1" != "start" ];then
-  echo "usage: npm run docsite (build|start)" >&2
+  echo "usage: npm run docs (build|start)" >&2
   exit 1
 fi