Update README.md

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

Author: FabianaCampanari

README.md

@@ -1813,6 +1813,10 @@ After running Solver, you should get a solution like:
 
 #### ➣ [Click here]() and access Optimization and Simulation Shortest Path Exercises using Algorithm de DijkstraE, Excel Solver and Python 🐍
 
+- [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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 ### 🚜 Under Construction
 
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