/**
  * Update the specified resource in storage.
  *
  * @param  \Illuminate\Http\Request  $request
  * @param  int  $id
  * @return \Illuminate\Http\Response
  */
 public function update(TestimonialRequest $request, $id)
 {
     $testimonial = Testimonial::findOrFail($id);
     $testimonial->update($request->all());
     flash('Testimonial updated');
     return redirect()->route('admin-testimonials.index');
 }