fix: mkdocs fixes, I think

fgpyo/util/metric.py

@@ -456,7 +456,7 @@ def __init__(
  ) -> None:
  """
  Args:
- path: Path to the file to write.
+ filename: Path to the file to write.
  metric_class: Metric class.
  append: If `True`, the file will be appended to. Otherwise, the specified file will be
  overwritten.
@@ -541,7 +541,7 @@ def write(self, metric: Metric) -> None:
 
  Raises:
  TypeError: If the provided `metric` is not an instance of the Metric class used to
- parametrize the writer.
+  parametrize the writer.
  """
  if not isinstance(metric, self._metric_class):
  raise TypeError(f"Must provide instances of {self._metric_class.__name__}")