add documentation about parameters

see commit feelpp/feelpp@9512e77
[ci skip]

docs/user/modules/python/pages/pyfeelppmor/parameters.adoc

@@ -30,4 +30,21 @@ mu = [4.37e+00,2.92e+00,1.17e+00,8.75e+05,5.28e+05,2.83e+01]
 
 * `setParameterNamed(name: str, value: float)` : set the parameter `name` to `value`
 
-* `size()` -> `int` : return the size of the parameter
+* `setParameters(...)` : Overloaded function.
+    1. `setParameters(values: List[float])` : set the parameter to the given list, the argument shas to be in the same order as values are stored in the `ParameterSpaceElement`.
+    2. `setParameters(values: Dict[str, float])` : set the parameter to the given dict with values. Eg `mu.setParameters({hcoeff: 2, q_1: 18712.5})`.
+
+* `size()` -> `int` : return the size of the parameter
+
+* `view()` : displays the names of the parameters, associated to their values. Here is an example :
+
+[source, python]
+----
+>>> mu.view()
+hcoeff  3.77075
+k_1     2.36557
+k_2     1.79914
+q_1     18710.5
+q_2     166074
+vinconv 3.58235
+----