How to display .gitignore file in netbeans

To display .gitignore file in netbeans simply modify the miscellaneous options in:

Tools->Options->miscellaneous ->Files

And change the Files ignore by the IDE:
From:
^(CVS|SCCS|vssver.?\.scc|#.*#|%.*%|_svn)$|~$|^\.(?!(htaccess)$).*$

To:
^(CVS|SCCS|vssver.?\.scc|#.*#|%.*%|_svn)$|~$|^\.(?!(htaccess|gitignore)$).*$