Merge pull request #402 from dimitrieh/docs/npm-ci-development

Update development docs to use npm ci

Author: knolleary

docs/getting-started/development.md

@@ -50,7 +50,7 @@ Once you are on you your chosen branch, you should install all of the dependenci
 with the command:
 
 ```
-npm install
+npm ci
 ```
 
 ### Building Node-RED