MNT: Docstring updates to various files related to 3 dof

Author: aZira371

docs/user/index.rst

@@ -7,7 +7,7 @@ RocketPy's User Guide
 
    Installation and Requirements <installation.rst>
    First Simulation <first_simulation.rst>
-   3 DOF Simulations and comparison <three_dof_simulation.rst>
+   3 DOF Simulations and Comparison <three_dof_simulation.rst>
 
 .. toctree::
    :maxdepth: 1

docs/user/three_dof_simulation.rst

@@ -418,7 +418,7 @@ in the :class:`rocketpy.Flight` class:
         inclination=85,
         heading=45,
         simulation_mode="3 DOF",
-        weathercock_coeff=1.0,  # Default value
+        weathercock_coeff=1.0,  # Example with weathercocking enabled
     )
 
     print(f"Apogee: {flight.apogee - env.elevation:.2f} m")

tests/integration/simulation/test_flight_3dof.py

@@ -108,10 +108,8 @@ def test_simulation_mode_sets_3dof_with_point_mass_rocket(flight_3dof):
 
     Parameters
     ----------
-    example_plain_env : rocketpy.Environment
-        A basic environment fixture for flight simulation.
-    point_mass_rocket : rocketpy.PointMassRocket
-        A point mass rocket fixture for 3-DOF simulation.
+    flight_3dof : rocketpy.simulation.flight.Flight
+        A Flight fixture configured for 3-DOF simulation with a PointMassRocket.
     """
     assert flight_3dof.simulation_mode == "3 DOF"
 
@@ -145,12 +143,6 @@ def test_u_dot_generalized_3dof_returns_valid_result(flight_3dof):
     Verifies that the u_dot_generalized_3dof method returns a list or numpy
     array representing the state derivative vector.
 
-    Parameters
-    ----------
-    example_plain_env : rocketpy.Environment
-        A basic environment fixture for flight simulation.
-    point_mass_rocket : rocketpy.PointMassRocket
-        A point mass rocket fixture for 3-DOF simulation.
     """
     flight = flight_3dof
     u = [0] * 13  # Generalized state vector size