title: short way should respond_to(:attribute) rspec
body: <p>I have a bunch attributes for my model post in my rspec test:</p>
  
  <pre><code>it { should respond_to(:title) }
  it { should respond_to(:description) }
  it { should respond_to(:instruction) }
  .
  .
  .
  </code></pre>
  
  <p><strong>Can I be more precise, use less lines in the test something like:</strong></p>
  
  <pre><code>it { should respond_to(:title, :description, :instruction) }
  </code></pre>