diff --git a/Manifest.toml.bak b/Manifest.toml.bak
old mode 100755
new mode 100644
diff --git a/Project.toml b/Project.toml
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new mode 100644
diff --git a/graph21-22.ipynb b/graph21-22.ipynb
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new mode 100644
index bd6c22e..5f15880
--- a/graph21-22.ipynb
+++ b/graph21-22.ipynb
@@ -443,7 +443,7 @@
     "    \n",
     "<strong style=\"color:cornflowerblue\">Question 5 (code):</strong> Implement the function `Simulation_SIS` (respect the header and the specifications).\n",
     "    \n",
-    "###### The corrector should be able to write `predictions, taus = Simulation_SIS(net,nbinf,betas,alphas,t,nbsimu)` with your code."
+    "###### The corrector should be able to write `predictions, taus = Simulation_SIS(net, nbinf, betas, alphas, t, nbsimu)` with your code."
    ]
   },
   {
diff --git a/grid50_Q22.jld2 b/grid50_Q22.jld2
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new mode 100644
diff --git a/karat7_Q22_1.jld2 b/karat7_Q22_1.jld2
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new mode 100644
diff --git a/karat7_Q22_2.jld2 b/karat7_Q22_2.jld2
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new mode 100644