More specific check for the reading content

[xuzhg]

For example:

When we read the response, Can we make sure the response status codes is HTTP status code (3-digit-number starting with 1, 2, 3, 4, 5 or the range definition allowed: 1XX, 2XX, 3XX, 4XX, 5XX)

[darrelmiller]

👍

[PerthCharern]

This is handled in #215 as a validation rule