code: function getLinkedDeps(pkgs) {
    return pkgs.map((name) => {
      const isLinked = checkForLink(name);
      return isLinked ? name : false;
    }).filter(Boolean);
  }
docs: getLinkedDeps returns a list of linked dependencies
  @param  {Array} pkgs   An array of dependencies
  @return {Array}        Array of linked dep names