Initialize changelog.md for v0.5.0 and v0.6.0 (#118)

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README.md

@@ -49,6 +49,10 @@ The master branch works with **PyTorch 1.3+**.
 
 This project is released under the [Apache 2.0 license](LICENSE).
 
+## Changelog
+
+v0.6.0 was released in 2/9/2020. Please refer to [changelog.md](docs/changelog.md) for details and release history.
+
 ## Benchmark
 | Model  |input| io backend | batch size x gpus | MMAction2 (s/iter) | MMAction (s/iter) | Temporal-Shift-Module (s/iter) | PySlowFast (s/iter) |
 | :--- | :---------------:|:---------------:| :---------------:| :---------------:  | :--------------------: | :----------------------------: | :-----------------: |

docs/changelog.md

+## Changelog
+
+### v0.6.0 (2/9/2020)
+
+**Highlights**
+- Support TIN, CSN, SSN, NonLocal
+- Support FP16 training
+
+**New Features**
+- Support NonLocal module and provide ckpt in TSM and I3D ([#41](https://github.com/open-mmlab/mmaction2/pull/41))
+- Support SSN ([#33](https://github.com/open-mmlab/mmaction2/pull/33), [#37](https://github.com/open-mmlab/mmaction2/pull/37), [#52](https://github.com/open-mmlab/mmaction2/pull/52), [#55](https://github.com/open-mmlab/mmaction2/pull/55))
+- Support CSN ([#87](https://github.com/open-mmlab/mmaction2/pull/87))
+- Support TIN ([#53](https://github.com/open-mmlab/mmaction2/pull/53))
+- Support HMDB51 dataset preparation ([#60](https://github.com/open-mmlab/mmaction2/pull/60))
+- Support encoding videos from frames ([#84](https://github.com/open-mmlab/mmaction2/pull/84))
+- Support FP16 training ([#25](https://github.com/open-mmlab/mmaction2/pull/25))
+- Enhance demo by supporting rawframe inference ([#59](https://github.com/open-mmlab/mmaction2/pull/59)), output video/gif ([#72](https://github.com/open-mmlab/mmaction2/pull/72))
+
+**ModelZoo**
+- Update Slowfast modelzoo ([#51](https://github.com/open-mmlab/mmaction2/pull/51))
+- Update TSN, TSM video checkpoints ([#50](https://github.com/open-mmlab/mmaction2/pull/50))
+- Add data benchmark for TSN ([#57](https://github.com/open-mmlab/mmaction2/pull/57))
+- Add data benchmark for SlowOnly ([#77](https://github.com/open-mmlab/mmaction2/pull/77))
+- Add BSN/BMN performance results with feature extracted by our codebase ([#99](https://github.com/open-mmlab/mmaction2/pull/99))
+
+**Improvements**
+- Polish data preparation codes ([#70](https://github.com/open-mmlab/mmaction2/pull/70))
+- Improve data preparation scripts ([#58](https://github.com/open-mmlab/mmaction2/pull/58))
+- Improve unittest coverage and minor fix ([#62](https://github.com/open-mmlab/mmaction2/pull/62))
+- Support PyTorch 1.6 in CI ([#117](https://github.com/open-mmlab/mmaction2/pull/117))
+- Support `with_offset` for rawframe dataset ([#48](https://github.com/open-mmlab/mmaction2/pull/48))
+- Support json annotation files ([#119](https://github.com/open-mmlab/mmaction2/pull/119))
+- Support `multi-class` in TSMHead ([#104](https://github.com/open-mmlab/mmaction2/pull/104))
+- Support using `val_step()` to validate data for each `val` workflow ([#123](https://github.com/open-mmlab/mmaction2/pull/123))
+- Use `xxInit()` method to get `total_frames` and make `total_frames` a required key ([#90](https://github.com/open-mmlab/mmaction2/pull/90))
+- Add paper introduction in model readme ([#140](https://github.com/open-mmlab/mmaction2/pull/140))
+- Adjust the directory structure of `tools/` and rename some scripts files ([#142](https://github.com/open-mmlab/mmaction2/pull/142))
+
+**Bug Fixes**
+- Fix configs for localization test ([#67](https://github.com/open-mmlab/mmaction2/pull/67))
+- Fix configs of SlowOnly by fixing lr to 8 gpus ([#136](https://github.com/open-mmlab/mmaction2/pull/136))
+- Fix the bug in analyze_log ([#54](https://github.com/open-mmlab/mmaction2/pull/54))
+- Fix the bug of generating HMDB51 class index file ([#69](https://github.com/open-mmlab/mmaction2/pull/69))
+- Fix the bug of using `load_checkpoint()` in ResNet ([#93](https://github.com/open-mmlab/mmaction2/pull/93))
+- Fix the bug of `--work-dir` when using slurm training script ([#110](https://github.com/open-mmlab/mmaction2/pull/110))
+- Correct the sthv1/sthv2 rawframes filelist generate command ([#71](https://github.com/open-mmlab/mmaction2/pull/71))
+- `CosineAnnealing` typo ([#47](https://github.com/open-mmlab/mmaction2/pull/47))
+
+
+### v0.5.0 (9/7/2020)
+
+**Highlights**
+- MMAction2 is released
+
+**New Features**
+- Support various datasets: UCF101, Kinetics-400, Something-Something V1&V2, Moments in Time,
+  Multi-Moments in Time, THUMOS14
+- Support various action recognition methods: TSN, TSM, R(2+1)D, I3D, SlowOnly, SlowFast, Non-local
+- Support various action localization methods: BSN, BMN
+- Colab demo for action recognition