Include merge method link in attribute description
Include merge method link in attribute description

Currently, the project visibility methods attribute description link to
the descriptions and options for visibility methods. The merge methods
attribute description doesn't should do the same.

mmkassem/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq