Update README.md

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

Author: FabianaCampanari

README.md

@@ -53,6 +53,8 @@ The [key difference]() between sim-opt and other analytical tools is its [abilit
 
 # I- Example of a [Optimization Problem]()
 
+#### [Click here]() to access Theoretical and Pratical Material. 
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 ### An optimization problem can be represented using the `optidef` package. For example:
 
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@@ -349,7 +351,7 @@ The graphical method is a useful tool for solving linear programming problems wi
 
 #### [Click here](https://github.com/Quantum-Software-Development/Optimization-Simulation-Modeling-LinearProgramming/tree/f9cef4452ad8486d03c8273aa83885de625c2da8/class_4-Simplex%20Method/SIMPLEX%20IMPLEMENT%20and%20CALCULUS%20EXERCISES) and access Simplex Implementation and Calculus Exercises Manually Solved
 
-#### [Click here]() to access Theoretical and Pratical Material. 
+#### [Click here](https://github.com/Quantum-Software-Development/Optimization-Simulation-Modeling-LinearProgramming/blob/5d0f89d3a4d9f67f900463505cb7d4b4e72d186a/class_4-Simplex%20Method/class_4-Simplex%20Method.pdf) to access Theoretical and Pratical Material. 
 
 
 
@@ -367,8 +369,6 @@ The graphical method is a useful tool for solving linear programming problems wi
 
 
 
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 Let:
 - **A** be the mix with half cherry and half mint chocolates, and let **x₁** be the number of kilograms prepared of this mix.