example: update README content

examples/README.md

 # Pinocchio examples in Python
 
-This directory contains minimal examples on how to use **Pinocchio** with the Python bindings. 
+This directory contains minimal examples on how to use **Pinocchio** with the Python bindings or directly in C++. 
 
 ## Loading a model
 
-- Loading a URDF model: `python -i overview-urdf.py`
+- Loading an embeded Model: `python -i overview-simple.py` and in C++ `g++ -I $(pkg-config --cflags pinocchio) -g overview-simple.cpp -o overview-simple && ./overview-simple`
+- Loading a URDF model: `python -i overview-urdf.py` and in C++ `g++ -I $(pkg-config --cflags pinocchio) -g overview-urdf.cpp -o overview-urdf && ./overview-urdf`
 - Using RobotWrapper to encapsulate a URDF model: `python -i robot-wrapper-viewer.py`
 
-## Computing analytical derivatives of rigid body dynamics algorithms
+## Computes analytical derivatives of rigid body dynamics algorithms
 
-- Computing forward kinematics derivatives: `python -i kinematics-derivatives.py` 
-- Computing forward dynamics (fd) derivatives: `python -i fd-derivatives.py` 
-- Computing inverse dynamics (id) derivatives: `python -i id-derivatives.py` 
+- Computing forward kinematics derivatives: `python -i kinematics-derivatives.py` and in C++ `g++ -I $(pkg-config --cflags pinocchio) -g kinematics-derivatives.cpp -o kinematics-derivatives && ./kinematics-derivatives`
+- Computing forward dynamics derivatives: `python -i forward-dynamics-derivatives.py` and in C++ `g++ -I $(pkg-config --cflags pinocchio) -g forward-dynamics-derivatives.cpp -o forward-dynamics-derivatives && ./forward-dynamics-derivatives`
+- Computing inverse dynamics derivatives: `python -i inverse-dynamics-derivatives.py` and in C++ `g++ -I $(pkg-config --cflags pinocchio) -g inverse-dynamics-derivatives.cpp -o inverse-dynamics-derivatives && ./inverse-derivatives`
 
-## Viewer with Pinocchio
+## Displaying the models
+
+For the following examples, you should have [gepetto-gui](https://github.com/Gepetto/gepetto-viewer-corba) or [MeshCat](https://github.com/rdeits/meshcat) installed.
 
 - Loading a robot model using [gepetto-gui](https://github.com/Gepetto/gepetto-viewer-corba): `python -i gepetto-viewer.py`
 - Loading a robot model using [MeshCat](https://github.com/rdeits/meshcat): `python -i meshcat-viewer.py`
+- Loading a model with basic geometries [MeshCat](https://github.com/rdeits/meshcat): `python -i sample-model-viewer.py`
+
+## Collision checking
+
+Pinocchio encapsulates  [FCL](https://github.com/humanoid-path-planner/hpp-fcl) in it. You can then do collision checking or distance computations with only few lines of code.
+
+- Check collisions using [FCL](https://github.com/humanoid-path-planner/hpp-fcl): `python -i collisions.py` and in C++ `g++ -I $(pkg-config --cflags pinocchio) -g collision.cpp -o collision && ./collision`
 
-## Collisions
+## Adding new examples
 
-- Check collisions using [FCL](https://github.com/humanoid-path-planner/hpp-fcl): `python -i collisions.py`
+If you need a specific example for your applications, to not hesitate to open an issue detailing your specific request.