Adds proper termination

Author: miguelgondu

docs/protein-optimization/using_poli/objective_repository/foldx_sasa.md

@@ -83,6 +83,9 @@ print(x0)
 
 # Querying:
 print(y0)  # The stability of your wildtype
+
+# Terminate the process.
+f.terminate()
 ```
 
 ```{warning}

docs/protein-optimization/using_poli/objective_repository/foldx_stability.md

@@ -83,6 +83,9 @@ print(x0)
 
 # Querying:
 print(y0)  # The stability of your wildtype
+
+# Terminate the process.
+f.terminate()
 ```
 
 ```{warning}

docs/protein-optimization/using_poli/objective_repository/rdkit_logp.md

@@ -89,6 +89,9 @@ x = np.array([[1]])
 
 # Querying:
 print(f(x))  # Should be close to 0.6361
+
+# Terminate the process.
+f.terminate()
 ```
 
 ```{warning}

docs/protein-optimization/using_poli/objective_repository/rdkit_qed.md

@@ -89,6 +89,9 @@ x = np.array([[1]])
 
 # Querying:
 print(f(x))  # Should be close to 0.35978
+
+# Terminate the process.
+f.terminate()
 ```
 
 ```{warning}