message: Pylint error resolved
diff: @@ -116,15 +116,15 @@ def gradients(ys,
  sess.run(g2) # [array([[0., 0.]], dtype=float32)]
  ```
  - Let us take one practical example which comes during the back propogation phase.
  - This function is used to evaluate the derivatives of the cost function with
  - respect to Weights `Ws` and Biases `bs`. Below sample implementation provides
  - the exaplantion of what it is actually used for :
  + Let us take one practical example which comes during the back propogation
  + phase. This function is used to evaluate the derivatives of the cost function
  + with respect to Weights `Ws` and Biases `bs`. Below sample implementation
  + provides the exaplantion of what it is actually used for :
  ```python
  Ws = tf.constant(0.)
  bs = 2 * Ws
  - cost = Ws + bs # This is just an example. So, please ignore the formulas used.
  + cost = Ws + bs # This is just an example. So, please ignore the formulas.
  g = tf.gradients(cost, [Ws, bs])
  dCost_dW, dCost_db = g
  ```
  