Merge pull request optuna#5705 from eukaryo/emmr-terminator-blog-readme-update

Update news section in `README.md`

Author: not522

README.md

@@ -25,12 +25,12 @@ Optuna can dynamically construct the search spaces for the hyperparameters.
 
 ## :loudspeaker: News
 <!-- TODO: when you add a new line, please delete the oldest line -->
+* **Oct 15, 2024**: We posted [an article](https://medium.com/optuna/introducing-a-new-terminator-early-termination-of-black-box-optimization-based-on-expected-9a660774fcdb) about `Terminator`, which is expanded in Optuna 4.0.
 * **Sep 18, 2024**: We posted [an article](https://medium.com/optuna/introducing-the-stabilized-journalstorage-in-optuna-4-0-from-mechanism-to-use-case-e320795ffb61) about `JournalStorage`, which is stabilized in Optuna 4.0.
 * **Sep 2, 2024**: Optuna 4.0 is available!  You can install it by `pip install -U optuna`. Find the latest [here](https://github.com/optuna/optuna/releases) and check [our article](https://medium.com/optuna/optuna-4-0-whats-new-in-the-major-release-3325a8420d10).
 * **Aug 30, 2024**: We posted [an article](https://medium.com/optuna/optunahub-a-feature-sharing-platform-for-optuna-now-available-in-official-release-4b99efe9934d) about the official release of [OptunaHub](https://hub.optuna.org/).
 * **Aug 28, 2024**: We posted [an article](https://medium.com/optuna/a-natural-gradient-based-optimization-algorithm-registered-on-optunahub-0dbe17cb0f7d) about [implicit natural gradient optimization (`INGO`)](https://hub.optuna.org/samplers/implicit_natural_gradient/), a sampler newly supported in [OptunaHub](https://hub.optuna.org/).
 * **Aug 20, 2024**: We posted [an article](https://medium.com/optuna/file-management-during-llm-large-language-model-trainings-by-optuna-v4-0-0-artifact-store-5bdd5112f3c7) about [`ArtifactStore`](https://optuna.readthedocs.io/en/stable/reference/artifacts.html) officially supported from Optuna 4.0.
-* **Aug 15, 2024**: We posted [an article](https://medium.com/optuna/introduction-to-catcma-in-optunahub-ffa316309cb8) about [`CatCMA`](https://hub.optuna.org/samplers/catcma/), a sampler newly supported in [OptunaHub](https://hub.optuna.org/).
 
 ## :fire: Key Features