Web and benchmark documentation pdf report updated

web/content/docs/benchmarks/small-deformations/ModifiedCamClay/index.md

 +++
 author = "Christian Silbermann, Thomas Nagel"
-project = ["Mechanics/ModifiedCamClay/square_1e0_shear.prj", "Mechanics/ModifiedCamClay/square_1e0_biax.prj", "Mechanics/ModifiedCamClay/model_triaxtest.prj"]
+project = ["Mechanics/ModifiedCamClay/square_1e0_shear.prj",
+           "Mechanics/ModifiedCamClay/square_1e0_biax.prj",
+           "Mechanics/ModifiedCamClay/triaxtest.prj",
+           "Mechanics/ModifiedCamClay/triaxtest_original.prj",
+           "Mechanics/ModifiedCamClay/triaxtest_original_abs.prj"]
 date = "2020-12-14T14:39:39+01:00"
 title = "Modified Cam clay model"
 image = ""
@@ -8,10 +12,13 @@ image = ""
 
 ## Test cases
 
-Three tests are presented:
+Five tests are presented:
 
 {{< data-link >}}
 
+of which the last three have the same test program but use different implementations of the modified Cam clay model.
+The mfront-files can be found at [here](MaterialLib/SolidModels/MFront).
+
 ## Problem description
 
 We perform plane strain and axisymmetric mechanical tests using