Make syntax highlighting explicit in docs

src/ifcopenshell-python/ifcopenshell/api/system/add_port.py

@@ -39,7 +39,9 @@ class Usecase:
         :return: The newly created IfcDistributionPort
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # Create a duct
             duct = ifcopenshell.api.run("root.create_entity", model,

src/ifcopenshell-python/ifcopenshell/api/system/add_system.py

@@ -38,7 +38,9 @@ class Usecase:
         :return: The newly created IfcSystem.
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)

src/ifcopenshell-python/ifcopenshell/api/system/assign_port.py

@@ -37,7 +37,9 @@ class Usecase:
             IfcRelConnectsPortToElement for IFC2X3.
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # Create a duct
             duct = ifcopenshell.api.run("root.create_entity", model,

src/ifcopenshell-python/ifcopenshell/api/system/assign_system.py

@@ -34,7 +34,9 @@ class Usecase:
         :return: The IfcRelAssignsToGroup relationship
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)

src/ifcopenshell-python/ifcopenshell/api/system/connect_port.py

@@ -62,7 +62,9 @@ class Usecase:
             fittings are less important.
         :type element: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)

src/ifcopenshell-python/ifcopenshell/api/system/disconnect_port.py

@@ -32,7 +32,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)

src/ifcopenshell-python/ifcopenshell/api/system/edit_system.py

@@ -31,7 +31,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)

src/ifcopenshell-python/ifcopenshell/api/system/remove_system.py

@@ -28,7 +28,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)

src/ifcopenshell-python/ifcopenshell/api/system/unassign_port.py

@@ -35,7 +35,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # Create a duct
             duct = ifcopenshell.api.run("root.create_entity", model,

src/ifcopenshell-python/ifcopenshell/api/system/unassign_system.py

@@ -31,7 +31,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # A completely empty distribution system
             system = ifcopenshell.api.run("system.add_system", model)