Remove unknown options from phpcpd task documentation

[ghost]

Q	A
Branch	master
Bug fix?	no
New feature?	no
BC breaks?	no
Deprecations?	no
Documented?	yes
Fixed tickets

When executing phpcpd through grumphp with the default settings copied from the documentation page to my grumphp.yml file it throws the following error:

In OptionsResolver.php line 871:
                                                                               
  The options "names_exclude", "regexps_exclude" do not exist. Defined option  
  s are: "directory", "exclude", "fuzzy", "min_lines", "min_tokens", "trigger  
  ed_by".  

This pull requests removes the unknown options from the documentation page.

[veewee]

Thanks! Really appreciate those small improvements! It's easy to overlook those ...

[ghost]

No problem @veewee , I'm currently trying to setup a stack library that requires all the suggested packages for global grumphp usage. This is why I'm testing each and every command separately. So I can automate the releases for this package.

https://github.com/verbruggenalex/grumphp-stack/blob/master/composer.json