/**
  * Update the specified resource in storage.
  *
  * @param  \Illuminate\Http\Request  $request
  * @param  int  $id
  * @return \Illuminate\Http\Response
  */
 public function update(Request $request, $id)
 {
     $this->validate($request, ['title' => 'required']);
     $seo = SeoInfo::findOrFail($id);
     $seo->update($request->all());
     return redirect('admin/seo');
 }