message: fix typo in downloaded schema filename
diff: @@ -116,7 +116,7 @@ export function downloadSchema(schema: GraphQLSchema, type: string) {
  return download(data, filename)
  } else {
  const data = JSON.stringify(schema)
  - const filename = 'instrospectionSchema.json'
  + const filename = 'introspectionSchema.json'
  return download(data, filename)
  }
  }
  