Write more FAQ answers based on feedback

[carolstran]

The following questions are some ideas of what questions could be added to the FAQ page based on feedback we've received on the page so far.

🙋🏼 If anyone wants to take one (or more), please comment in this issue and then follow the contributing guidelines to open your pull request 🚀

Here are the new questions added (sorted by section):

Getting Started

• Can I use GraphQL to make graphs or charts?
• What are the downsides of GraphQL?

General

• Does GraphQL only work with graph-like structures or data sources that are graph-based?

Best Practices

• Does GraphQL introduce a single point of failure?
• How can I make part of my GraphQL API private?
• How can I do error handling?
• Schema-first or code-first?

Specification

• Why doesn’t GraphQL have a wildcard field?
• What is the N+1 problem I keep hearing about?

[Itsaadarsh]

Hello there @carolstran, I'd like to work on this feature so can you assign this to me?

And one more thing do I have to post all the questions and their respective answers here down below for reviewing before sending a PR?

[carolstran]

Hey @Itsaadarsh, thanks for being interested in adding to the FAQ 🚀 Would you like to work on all of the questions in this issue or would you prefer to start with one initially? Either way, you don't have to post them here first - you can open the PR and then it'll be reviewed by the team 😊

[Itsaadarsh]

Hey @carolstran, I'll start working on all the above-mentioned FAQs, if I'm not sure about some of them I'll skip them and also let you know about the skipped once, is that fine?