Update README.md

Author: drgona

examples/domain_examples/README.md

@@ -25,6 +25,8 @@ showcasing the use of Neuromancer in solving various domain problems.
 + <a target="_blank" href="https://colab.research.google.com/github/pnnl/neuromancer/blob/master/examples/domain_examples/DPC_PSH.ipynb">
   <img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"/></a> Learning to Control Pumped-storage Hyrdoelectricity System
 
++ <a target="_blank" href="https://github.com/pnnl/neuromancer/blob/master/examples/domain_examples/RL_DPC_building_control.ipynb">
+  <img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"/></a> Learning to Control a Building With Safe Reinforcement Learning and Differentiable Predictive Control
 
 ## Electricity Load Modelling and Forecasting