Introspector README examples have missing readonly variable

[jharris4]

The examples given in https://github.com/neo4j/graphql/tree/dev/packages/introspector#readme mention a variable readonly which is not defined anywhere

[neo4j-team-graphql]

Many thanks for raising this bug report @jharris4. 🐛 We will now attempt to reproduce the bug based on the steps you have provided.

Please ensure that you've provided the necessary information for a minimal reproduction, including but not limited to:

• Type definitions
• Resolvers
• Query and/or Mutation (or multiple) needed to reproduce

If you have a support agreement with Neo4j, please link this GitHub issue to a new or existing Zendesk ticket.

Thanks again! 🙏

[neo4j-team-graphql]

We've been able to confirm this bug using the steps to reproduce that you provided - many thanks @jharris4! 🙏 We will now prioritise the bug and address it appropriately.