We've got a title, description, and author in a
siteMetadata object in
Go ahead and run
gatsby develop. You should see a link to the GraphiQL explorer in the output, which is usually
GraphiQL lets us visually explore the data in our Gatsby site and build queries. It has three panes: an explorer, a query editor, and an output pane.
You can see the data we added by expanding
site and then
siteMetadata and then clicking the big button to run the query. Cool, huh?
Let's use this query somewhere in our site.