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README.md

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 # building-a-multibranch-pipeline-project
+
+This repository is for the
+[Using Jenkins to build a multibranch Pipeline project](https://jenkins.io/doc/tutorials/building-a-multibranch-pipeline-project/)
+tutorial in the [Jenkins User Documentation](https://jenkins.io/doc/).
+
+The repository contains a simple Node.js and React application which generates
+a web page with the content "Welcome to React" and is accompanied by a test to
+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` subdirectory
+contains a shell script with commands that are executed when Jenkins processes
+either the "Deliver for development" or "Deploy for production" stages of your
+Pipeline (depending on the branch that Jenkins builds from).