README.md: comment on multiple @follow UNLESS

Mentioning that @follow UNLESS {base model} can be repeated one per line / base model.
Use preg match instead of preg_match_all in checkDocHints
Merge pull request #9 from myselfhimself/patch-2

README.md: comment on multiple @follow UNLESS
Merge pull request #10 from menthol/patch-1

Use preg match instead of preg_match_all in checkDocHints
Bugfix when using the dir parameter in the paths command
Fix display of error message when models are loaded from directories
Merge branch 'develop' of https://github.com/myselfhimself/larasearch into develop
re-tentative fix for issue #13 on empty paths generation when all relationships set as @follow NEVER