message: Typo on command name
diff: @@ -75,7 +75,7 @@ In case you specify multiple schemas in your `.graphqlconfig` file, choose which
  When using `apollo-codegen` with Typescript or Flow, make sure to add the `__typename` introspection field to every selection set within your graphql operations.
  -If you're using a client like `apollo-client` that does this automatically for your GraphQL operations, pass in the `--addTypename` option to `apollo-codegen` to make sure the generated Typescript and Flow types have the `__typename` field as well. This is required to ensure proper type generation support for `GraphQLUnionType` and `GraphQLInterfaceType` fields.
  +If you're using a client like `apollo-client` that does this automatically for your GraphQL operations, pass in the `--add-typename` option to `apollo-codegen` to make sure the generated Typescript and Flow types have the `__typename` field as well. This is required to ensure proper type generation support for `GraphQLUnionType` and `GraphQLInterfaceType` fields.
  ### Why is the __typename field required?
  