Remove trailing zeros from quantile output type ID examples

[annakrystalli]

Issue on page /quickstart-hub-admin/tasks-config.html

Correct quantiles section to remove trailing zeros from quantile output type IDs.

Explain the issue with trailing zeros in number fields discussed in:

• https://github.com/Infectious-Disease-Modeling-Hubs/hubValidations/issues/54
• https://github.com/Infectious-Disease-Modeling-Hubs/hubValidations/issues/58
• https://github.com/Infectious-Disease-Modeling-Hubs/hubValidations/pull/60