Make syntax highlighting explicit in docs

src/ifcopenshell-python/ifcopenshell/api/document/add_information.py

@@ -37,7 +37,9 @@ class Usecase:
         :return: The newly created IfcDocumentInformation entity
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             # A document typically has a unique drawing or document name (which

src/ifcopenshell-python/ifcopenshell/api/document/add_reference.py

@@ -41,7 +41,9 @@ class Usecase:
         :return: The newly created IfcDocumentReference entity
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             ifcopenshell.api.run("document.edit_information", model,

src/ifcopenshell-python/ifcopenshell/api/document/assign_document.py

@@ -42,7 +42,9 @@ class Usecase:
         :return: The IfcRelAssociatesDocument relationship
         :rtype: ifcopenshell.entity_instance.entity_instance
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             ifcopenshell.api.run("document.edit_information", model,

src/ifcopenshell-python/ifcopenshell/api/document/edit_information.py

@@ -31,7 +31,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             ifcopenshell.api.run("document.edit_information", model,

src/ifcopenshell-python/ifcopenshell/api/document/edit_reference.py

@@ -31,7 +31,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             ifcopenshell.api.run("document.edit_information", model,

src/ifcopenshell-python/ifcopenshell/api/document/remove_information.py

@@ -31,7 +31,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             # Add a document
             document = ifcopenshell.api.run("document.add_information", model)

src/ifcopenshell-python/ifcopenshell/api/document/remove_reference.py

@@ -28,7 +28,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             reference = ifcopenshell.api.run("document.add_reference", model, information=document)

src/ifcopenshell-python/ifcopenshell/api/document/unassign_document.py

@@ -32,7 +32,9 @@ class Usecase:
         :return: None
         :rtype: None
 
-        Example::
+        Example:
+
+        .. code:: python
 
             document = ifcopenshell.api.run("document.add_information", model)
             ifcopenshell.api.run("document.edit_information", model,