Dislcaimer added, dates updated, missing pdf link fixed

web/content/docs/benchmarks/phase-field/pf_perc.pandoc

 +++
 project = "PhaseField/me2_pf_case1.prj"
 author = "Keita Yoshioka"
-date = "2017-05-19T09:10:33+01:00"
+date = "2020-07-27"
 title = "Fluid driven percolation"
 weight = 158
 
@@ -14,8 +14,10 @@ weight = 158
 {{< data-link >}}
 
 ## Problem description
+**Note**, this project file runs only with a modified version of OGS
+which you can find [here](https://github.com/KeitaYoshioka/ogs/tree/H2M_phasefield).
 
-We simulate two different fluid percolation experiments performed on rock salt samples with a true tri-axial loading system as described in [this] (../Yoshioka_percolation.pdf). The experiments were performed under two different stress configurations as below.
+We simulate two different fluid percolation experiments performed on rock salt samples with a true tri-axial loading system as described in [this PDF](../Yoshioka_percolation.pdf). The experiments were performed under two different stress configurations as below.
 {{< img src="../ME2_stress_state_1.pdf" >}}
 {{< img src="../ME2_stress_state_2.pdf" >}}
 

web/content/docs/benchmarks/phase-field/pf_tpb.pandoc

 +++
 project = "PhaseField/tpb_rgranite.prj"
 author = "Keita Yoshioka"
-date = "2017-05-19T09:10:33+01:00"
+date = "2020-07-27"
 title = "Three point bending test"
 weight = 158
 
@@ -14,6 +14,8 @@ weight = 158
 {{< data-link >}}
 
 ## Problem description
+**Note**, this project file runs only with a modified version of OGS
+which you can find [here](https://github.com/KeitaYoshioka/ogs/tree/H2M_phasefield).
 
 We simulate a three point bending test performed on Rockville granite as shown below. Details of the experiment can be found in Tarok et al. 2017.
 {{< img src="../TPB_exp.png" >}}

web/content/docs/benchmarks/phase-field/pf_tpb_ani.pandoc

@@ -14,6 +14,8 @@ weight = 158
 {{< data-link >}}
 
 ## Problem description
+**Note**, this project file runs only with a modified version of OGS
+which you can find [here](https://github.com/KeitaYoshioka/ogs/tree/H2M_phasefield).
 
 We simulate three point bending tests performed on lamination orthogonal and parallel. The layer lamination is represented through the fracture toughnss $G_c$ as shown below.
 {{< img src="../ME1_ext_2D_orthogonal_init.png" >}}