docs(readme): fix json syntax error in example

[haltcase]

Change single quotes to double quotes in the example for config.subjectPatternErrorMsg.

[codecov-io]

Current coverage is 100% (diff: 100%)

Merging #55 into master will not change coverage

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[kentcdodds]

Would you like to add yourself to the contributors table? See the contributing guidelines for how.

[haltcase]

@kentcdodds I ran into a few issues along the way.

1) stringstream was not installed by yarn

This threw `Error: Cannot find module 'stringstream'` when trying `yarn run add-contributor`.

   +-- all-contributors-cli@3.0.7
   | `-- request@2.79.0
   |   `-- UNMET DEPENDENCY stringstream@~0.0.4
   `-- codecov.io@0.1.6
     `-- request@2.42.0
     `-- UNMET OPTIONAL DEPENDENCY stringstream@~0.0.4

I had to manually install stringstream.

2) istanbul (?) error on yarn run validate

I haven't used istanbul so I don't know for sure, maybe it's a Windows issue. I'm on Windows as evidenced by the empty line thing apparently.

   (function (exports, require, module, __filename, __dirname) { @IF EXIST "%~dp0\node.exe" (
                                                                 ^
   SyntaxError: Invalid or unexpected token

3) No emoji even though I selected Documentation. From what I understand it should have received :book:

I'll fix up what you've commented on.

[kentcdodds]

huh, that's weird. If you have any more trouble, don't worry about it and I'll merge it as-is. Thanks!

[kentcdodds]

Thanks!

[haltcase]

No bigs, thanks man. All that for a couple double quotes :stuck_out_tongue_closed_eyes:

[kentcdodds]

Yeah, sorry about that. It's worth it to me to recognize those who help with the project! Thanks!

[haltcase]

Yep I didn't mean anything by that - it's cool that you have that recognition front and center, I appreciate that.

[kentcdodds]

It's cool that you contributed to the project. I appreciate that.

😀 ❤️