Juniper: Juniper Book (master) generation is not working.

[kunjee17]

Describe the bug
Seems to book (master) generation issue.

To Reproduce
If you go to subscription page, you will find below text instead of plain old generated html.

Currently there is an example of subscriptions with [warp][warp], but it still in an alpha state. GraphQL over [WS][WS] is not fully supported yet and is non-standard.

    Warp Subscription Example
    Small Example

[Coordinator]: https://docs.rs/juniper_subscriptions/0.15.0/struct.Coordinator.html [SubscriptionCoordinator]: https://docs.rs/juniper_subscriptions/0.15.0/trait.SubscriptionCoordinator.html [Connection]: https://docs.rs/juniper_subscriptions/0.15.0/struct.Connection.html [SubscriptionConnection]: https://docs.rs/juniper_subscriptions/0.15.0/trait.SubscriptionConnection.html [Future]: https://docs.rs/futures/0.3.4/futures/future/trait.Future.html [warp]: https://github.com/graphql-rust/juniper/tree/master/juniper_warp [WS]: https://github.com/apollographql/subscriptions-transport-ws/blob/master/PROTOCOL.md [GraphQLError]: https://docs.rs/juniper/0.14.2/juniper/enum.GraphQLError.html [Schema]: ../schema/schemas_and_mutations.md 

Expected behavior
It should have generated proper html

Additional context
I haven't checked other pages for issues. But best guess is it might be there and fixing one page should fix all pages.

[tyranron]

@kunjee17 yup, there is some mess around links. I've planned to fix it with the subscriptions layer being polished altogether. However, earlier PRs are still welcome 😉

[siyopao]

Hi! I think this has been fixed. (The links are still broken though.) When I do mdbook build in docs/book it seems to be fine:

However, I had to add a title in SUMMARY.md otherwise it stopped generating content at Type System: Other types: Union. Did you not have this problem?