update changelog

docs/changelog.md

@@ -14,6 +14,7 @@
 - Set default values of 'average_clips' in each config file so that there is no need to set it explicitly during testing in most cases ([#232](https://github.com/open-mmlab/mmaction2/pull/232))
 - Extend HVU datatools to generate individual file list for each tag category ([#258](https://github.com/open-mmlab/mmaction2/pull/258))
 - Support data preparation for Kinetics-600 and Kinetics-700 ([#254](https://github.com/open-mmlab/mmaction2/pull/254))
+- Use `metric_dict` to replace hardcoded arguments in `evaluate` function ([#286](https://github.com/open-mmlab/mmaction2/pull/286))
 - Add `cfg-options` in arguments to override some settings in the used config for convenience ([#212](https://github.com/open-mmlab/mmaction2/pull/212))
 - Rename the old evaluating protocol `mean_average_precision` as `mmit_mean_average_precision` since it is only used on MMIT and is not the `mAP` we usually talk about. Add `mean_average_precision`, which is the real `mAP` ([#235](https://github.com/open-mmlab/mmaction2/pull/235))
 - Add accurate setting (Three crop * 2 clip) and report corresponding performance for TSM model ([#241](https://github.com/open-mmlab/mmaction2/pull/241))