On [line 3](https://github.com/jscomplete/graphql-in-action/blob/8.7/api/src/schema/types/approach-detail-category.js#L3) and [line 12](https://github.com/jscomplete/graphql-in-action/blob/3b3cf5090208312700498728a41f77ac99cdbb48/api/src/schema/types/approach-detail-category.js#L12) of `approach-detail-category.js`: `ApproachDetailCategroy` should read `ApproachDetailCategory`
