add fields

Author: gambitier

session 3/chapters/1. Software Package Manager.md

@@ -86,6 +86,8 @@ for more information, [read here](https://www.section.io/engineering-education/n
 
 # Metadata Inside package.json
 
+![package.json metadata](../images/pack-metadata.jpg)
+
 ## The name property
 
 The `name property` in a `package.json` file is one of the fundamental components of the `package.json` structure. At its core, name is a string that is exactly what you would expect - the name of the module that the `package.json` is describing.