Update README.md

Signed-off-by: Fabiana 🚀  Campanari <113218619+FabianaCampanari@users.noreply.github.com>

Author: FabianaCampanari

README.md

@@ -1815,7 +1815,9 @@ After running Solver, you should get a solution like:
 
 - [Exercise_1](https://github.com/Quantum-Software-Development/Optimization-Simulation-MathModeling-LinearProgramming/tree/51325dc92386be458fc4e097f174144eed789627/class__12-%20Shortest%20Path-Dijkstra's%20Algorithm/Exercise_1-Dijkstra's%20Algorithm%20Step-by-Step%20Solution) - Dijkstra's Algorithm Step-by-Step Solution
 
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+- [Exercise_2](https://github.com/Quantum-Software-Development/Optimization-Simulation-MathModeling-LinearProgramming/tree/fea46e9b77b854da12b49ab2a73b1506221e6548/class__12-%20Shortest%20Path-Dijkstra's%20Algorithm/Exerc_2-Applying%20Dijkstra's%20Algorithm%20to%20the%20Shortest%20Path%20Problem) - Applying Dijkstra's Algorithm to the Shortest Path Problem /
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+
 
 ### 🚜 Under Construction