Doc fix for an extra apostrophe in the code example for additionalDI (apollo-angular config.)

[salticus]

Which packages are impacted by your issue?

@graphql-codegen/typescript-apollo-angular

Describe the bug

The line currently reads

additionalDI: ['testService: TestService', 'testService1': TestService1']

Based on the type of string[] for additionalDI, I believe that the apostrophe after testService1 should be removed.

Your Example Website or App

https://the-guild.dev/graphql/codegen/plugins/typescript/typescript-apollo-angular#usage-examples-9

Steps to Reproduce the Bug or Issue

1. Go to https://the-guild.dev/graphql/codegen/plugins/typescript/typescript-apollo-angular#usage-examples-9
2. Observe the code example for additionalDI

Expected behavior

As a user, I expected to see valid syntax, but I see something that produces a syntax error.

Screenshots or Videos

No response

Platform

Web

Codegen Config File

No response

Additional context

The link "Edit this page on Github" is still leading to the original repository: https://github.com/dotansimha/graphql-code-generator, rather than this one. A search of the git log showed the code had been moved here.

The list of possible options on this repository does not include documentation fixes, so I'm submitting this as a "bug."