Examples in device_type documentation are wrong

[cmeissner]

In documentation examples for device_type module the module name is wrong.

phpipam-ansible-modules/plugins/modules/device_type.py

Line 47 in 3dd4440

codeaffen.phpipam.device type:

phpipam-ansible-modules/plugins/modules/device_type.py

Line 57 in 3dd4440

codeaffen.phpipam.device type:

As the test_cases for that module works well and the notation with underscore is used the examples needs to be adjusted.