docs(community): add first biweekly meeting record and news entry (#1215)

Record the first AReaL community biweekly meeting (2026/04/18) with
agenda, slides, and recording links. Add news entry to README
announcing the meeting and the next scheduled session (2026/05/01).

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: garrett4wade

README.md

@@ -40,6 +40,14 @@ cost-effective** for a broad community of developers and researchers.
 
 ## 📰 News
 
+**\[2026/04/18\]** We are thrilled to announce that **AReaL's first Community Biweekly
+Meeting** was successfully held! Thank you to everyone who joined us. Meeting materials
+are now available
+[here](https://github.com/inclusionAI/AReaL/tree/main/assets/community). Our next
+meeting is scheduled for **2026/05/01** and will also be conducted in Chinese;
+English-language meetings will be scheduled in the future. We warmly welcome everyone to
+participate! See [Community](./assets/community/README.md) for more details.
+
 **\[2026/03/02\]** We provide [a complete example](./examples/openclaw/) to train your
 own 🦞 OpenClaw agent by simply replacing the `base_url` and `api_key` with AReaL's RL
 service - no complicated dependencies, no code changes, works with any agentic runtime!
@@ -52,15 +60,15 @@ the [paper](https://arxiv.org/pdf/2601.22607),
 [data](https://huggingface.co/datasets/inclusionAI/AReaL-tau2-data), and
 [code](https://github.com/inclusionAI/AReaL/tree/main/examples/tau2).
 
+<details>
+<summary><b>📋 Previous Releases</b></summary>
+
 **\[2026/01/15\]** Congrats to our friends at [CAMEL-AI](https://www.camel-ai.org/) for
 open-sourcing [SETA](https://github.com/camel-ai/seta), their terminal agent RL project
 trained with AReaL! Check out
 [their training workflow](https://github.com/camel-ai/seta/tree/main/training/tbench_areal_workflow)
 and the [announcement on X](https://x.com/guohao_li/status/2009678513574408636).
 
-<details>
-<summary><b>📋 Previous Releases</b></summary>
-
 **\[2026/01/01\]** Happy New Year! Thanks to the outstanding contribution from
 @HwVanICI, we are excited to officially announce stable support for AReaL training on
 **Ascend NPU devices**! The code is actively maintained and continuously updated in the

assets/community/README.md

@@ -12,15 +12,15 @@ For background on how the project is governed and how to participate, please see
 
 ## Upcoming Meetings
 
-| Date | Agenda | Slides | Recording |
-| ---- | ------ | ------ | --------- |
-| TBD  | TBD    | TBD    | TBD       |
+| Date       | Agenda | Slides | Recording |
+| ---------- | ------ | ------ | --------- |
+| 2026/05/01 | TBD    | TBD    | TBD       |
 
 ## Past Meetings
 
-| Date | Agenda | Slides | Recording |
-| ---- | ------ | ------ | --------- |
-| TBD  | TBD    | TBD    | TBD       |
+| Date       | Agenda                                                                                                         | Slides                                                                                                                                                   | Recording                                                               |
+| ---------- | -------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
+| 2026/04/18 | [Google Doc](https://docs.google.com/document/d/1t4JSoXuPgtMsjAHio4keh3PM1elDeQAXC_BZGnv9kco/edit?usp=sharing) | [Google Slides](https://docs.google.com/presentation/d/1MaZL2Tq39YPYQYIIWNiKaBo2MonLLbW-/edit?usp=sharing&ouid=102752648406195568586&rtpof=true&sd=true) | [Tencent Meeting (Chinese)](https://meeting.tencent.com/crm/2MW8w0q6b7) |
 
 ## How to Add Materials