Update README.md

* Update name (and link) of tutorial in the Jenkins User Documentation.
* Change 'a script' reference to 'scripts' (since there are more than one).

Author: gilesgas

README.md

@@ -1,6 +1,7 @@
 # simple-node-js-react-npm-app
 
-This repository is for the [Using Jenkins to build a Node.js/React project]( https://jenkins.io/doc/tutorials/using-jenkins-to-build-a-node-js-react-project/)
+This repository is for the
+[Using Jenkins to build a Node.js and React application with npm](https://jenkins.io/doc/tutorials/building-a-node-js-and-react-app-with-npm/)
 tutorial in the [Jenkins User Documentation](https://jenkins.io/doc/).
 
 The repository contains a simple Node.js and React application which generates
@@ -9,5 +10,5 @@ check that the application renders satisfactorily.
 
 The `jenkins` directory contains an example of the `Jenkinsfile` (i.e. Pipeline)
 you'll be creating yourself during the tutorial and the `scripts` directory
-contains a shell script with commands that are executed when Jenkins processes
+contains shell scripts with commands that are executed when Jenkins processes
 the "Deliver" stage of your Pipeline.