fix(scripts): reset continue state after each code block to avoid combining everything into a single code block

docs/user/howto/use_quantization.md

@@ -80,6 +80,7 @@ The `NumpyModule` allows us to runs inference as for a `nn.Module`. Here, the pr
 
 We can then quantize the numpy module with `PostTrainingAffineQuantization` as follows:
 
+<!--python-test:cont-->
 ```python
 from concrete.quantization import PostTrainingAffineQuantization
 numpy_input = numpy.random.uniform(-1, 1, size=(10,14)) # some input with 14 features to calibrate the quantization

script/make_utils/test_md_python_code.py

@@ -70,6 +70,7 @@ def get_code_blocks_for_file(md_file: Path) -> Dict[int, List[str]]:
                         "closed (missing ``` ?)"
                     )
                 current_python_code.append(line)
+            python_block_continues = False
         else:
             match = re.match(DIRECTIVE_COMMENT_PATTERN, line)
             if match is not None: