merge style in the same code block

docs/attributes-operators.rst

@@ -40,14 +40,14 @@ Chainable semantic attributes which define positive assertions.
 
 .. code-block:: python
 
+    # should style
     'foo' | should.be.equal.to('bar')
     'foo' | should.have.length.of(3)
 
     {'foo': 'bar'} | should.have.key('foo').which.should.be.equal.to('bar')
     {'foo': 'bar'} | should.have.key('foo').that.should.have.length.of(3)
 
-.. code-block:: python
-
+    # expect style
     expect('foo').to.equal.to('bar')
     expect('foo').to.have.length.of(3)
 
@@ -95,10 +95,10 @@ Chainable semantic attributes which define negative assertions.
 
 .. code-block:: python
 
+    # should style
     'foo' | should.not_be.equal.to('bar')
     'foo' | should.have_not.length.of(3)
 
-.. code-block:: python
-
+    # expect style
     expect('foo').to_not.equal.to('bar')
     expect('foo').to.not_have.length.of(3)