Add example of subquery

[gscheibel]

No description provided.

[codecov]

Codecov Report

Merging #171 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #171   +/-   ##
=========================================
  Coverage     97.89%   97.89%           
  Complexity      153      153           
=========================================
  Files            55       55           
  Lines           523      523           
  Branches         90       90           
=========================================
  Hits            512      512           
  Misses            7        7           
  Partials          4        4

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[d4rken]

What do you think about including the schema that is generated by the examples within the file as comment?

[smyrick]

@gscheibel Made a good comment that the example app is meant to be run so the resulting schema can easily be looked at in graphiQL, which is a little easier too.

I am going to merge. If we want to add more docs on what code will produce a schema we can do that in the wiki. I wouldn't expect anyone to look through the code for these comments.