title: How can I modify a variable in the controller from the view (ruby on rails)
body: <p>I am making a portfolio page in rails. On the front page I have an "About" section where I have a personal description of myself. I want to be able to change this dynamically (not hard-coded html).</p>
  
  <p>I would like to have the description be a text variable or string that I can modify through a form in the view section.</p>
  
  <p>Questions
  1. How should I declare this variable in the controller?
  2. How do I access and change it from the form in the view?
  3. Is there a better solution to my problem?</p>