Update combining-npm-nerdgraph.mdx

Update the graphql in the first option to retrieve the config as an object, not a script tag.

src/content/docs/apis/nerdgraph/examples/combining-npm-nerdgraph.mdx

@@ -57,7 +57,7 @@ The `options` object in the previous snippet needs to be populated with configur
             guid
             name
             browserProperties {
-              jsConfigScript
+              jsConfig
             }
           }
         }