fixing docs

Author: MartinPdeS

docs/examples/geometry/plot_ring_3.py

@@ -18,24 +18,28 @@
     structure_type=StructureType.CIRCULAR,
     number_of_fibers=3,
     fusion_degree=0.4,
-    fiber_radius=62.5e-6
+    fiber_radius=62.5e-6,
 )
 
-profile.refractive_index = 1.4444  # Refractive index of silica at the specified wavelength
+profile.refractive_index = (
+    1.4444  # Refractive index of silica at the specified wavelength
+)
 
 
 # Load fibers (e.g., SMF-28) positioned at the cores of the profile structure
 fiber_loader = FiberLoader()
 fibers = [
-    fiber_loader.load_fiber('SMF28', clad_refractive_index=profile.refractive_index, position=core_position)
+    fiber_loader.load_fiber(
+        "SMF28", clad_refractive_index=profile.refractive_index, position=core_position
+    )
     for core_position in profile.cores
 ]
 
 # Set up the geometry with the defined background, profile structure, and resolution
 geometry = Geometry(
     x_bounds=DomainAlignment.CENTERING,
     y_bounds=DomainAlignment.CENTERING,
-    resolution=350
+    resolution=350,
 )
 
 # Add the fibers to the geometry
@@ -44,4 +48,4 @@
 geometry.initialize()
 
 # Plot the resulting geometry
-geometry.plot(show_patch=True)
+geometry.plot()