docs: function findRepos(callback) {
    var cwd = process.cwd(),
        tasks = [];
  
    fs.readdir(cwd, function(err, files) {
      if (err) return callback(err);
  
      var repos = [];
      files.forEach(function(file) {
        if (fs.existsSync(path.join(cwd, file, '.git'))) {
          repos.push(path.join(cwd, file));
        }
      });
  
      if (repos.length === 0) {
        return callback(new Error('No repositories found'));
      }
  
      repos.forEach(function(dir) {
        tasks.push(function(done) {
          done(err, git(dir));
        });
      });
  
      async.series(tasks, function(err, results) {
        callback(err, results);
      });
    });
  }