Improvement: Added Readme for mesh handle tutorials, wiki links still missing.

tutorials/README.md

@@ -45,4 +45,6 @@ Creating a user defined mesh in two- and three dimensions.
 A tutorial about the generation of curved adaptive meshes.
 
 ## Mesh handle
-[mesh_handle_element_data](mesh_handle/t8_mesh_element_data.cxx) Recreating [step5](./general/t8_step5_element_data.cxx) of the general tutorials but using the mesh handle.
+The [mesh handle tutorials](../tutorials/mesh_handle/README.md) can be followed instead of the general t8code tutorials. They explain working with t8code with the help of the 
+[mesh_handle](../mesh_handle/README.md) interface. 
+Please note, that the mesh handle tutorials start at step 2, because steps 0 and 1 are the same as in the general tutorials. Please complete these first and then come back to the [mesh handle tutorial overview](../tutorials/mesh_handle/README.md).

tutorials/mesh_handle/README.md

@@ -0,0 +1,33 @@
+# Mesh handle tutorials
+
+This is the tutorial collection for the [mesh_handle](../../mesh_handle/README.md) interface of `t8code`. 
+
+The `mesh handle` interface acts as a bridge between the user and the tree-based t8code library. When using the mesh handle, t8code acts as if it is working with usual unstructured meshes. 
+Have a look at the [mesh handle README](../../mesh_handle/README.md) for more information.   
+
+There are corresponding articles for every tutorial in this folder in the [Wiki](https://github.com/DLR-AMR/t8code/wiki/Tutorial---Overview). The article can be used as a step-by-step guide for each tutorial. 
+
+Please note, that the mesh handle tutorials start at step 2. This is because [step0](https://github.com/DLR-AMR/t8code/wiki/Step-0---Hello-World) and [step1](https://github.com/DLR-AMR/t8code/wiki/Step-1---Creating-a-coarse-mesh) are identical to the [general t8code tutorials](../general). Complete these steps before switching to the mesh handle tutorials.  
+
+## Steps
+
+[step0](https://github.com/DLR-AMR/t8code/wiki/Step-0---Hello-World) - 
+Initialize t8code and print a welcome message.
+
+[step1](https://github.com/DLR-AMR/t8code/wiki/Step-1---Creating-a-coarse-mesh) - 
+Create a coarse mesh, output it to vtu and destroy it. We need a coarse mesh to initialize our mesh handle mesh. 
+
+[step2] -  
+Create a uniform mesh, get its number of local and global elements and output it to vtu.
+
+[step3] - 
+Adapt a mesh according to a user defined criterion. 
+
+[step4] - 
+Partitioning, balancing and creating a ghost layer for a mesh.
+
+[step5](mesh_handle/t8_mesh_step5_element_data.cxx) - 
+Associating user data with the elements of a mesh. Exchanging ghost values for element user data. Writing element user data to vtu.
+
+[stepA] - 
+Going into more detail about mesh handle competence packs to use additional features accessible through the mesh handle competence architecture. Explaining element data competences and caching. Creating a custom competence.