Typo, fixes #1329

Author: fhemberger

locale/en/docs/guides/nodejs-docker-webapp.md

@@ -96,7 +96,7 @@ WORKDIR /usr/src/app
 This image comes with Node.js and NPM already installed so the next thing we
 need to do is to install your app dependencies using the `npm` binary. Please
 note that if you are using `npm` version 5 or later you will also want to copy
-`package-lock.json`, which is gernerated once you run `npm install`:
+`package-lock.json`, which is generated once you run `npm install`:
 
 ```docker
 # Install app dependencies