Add code example for - S: Single Responsibility Principle

[muhammadawaisshaikh]

• Before Applying: Consider a component that displays a list of courses and allows the student to filter them by degree-program.

• After Applying:

  1. create a new component that displays the list of courses
  2. Now, we will create a new component that handles the degree-program filtering

[thrashtechinfo]

@muhammadawaisshaikh let's add this in terms of component level with and without - S: Single Responsibility Principle