[Minor] update docs (#14212)

docs/references/frontend/frontend_tutorial.ipynb

@@ -385,7 +385,7 @@
     "## Multi-modal Generation\n",
     "\n",
     "You may use SGLang frontend language to define multi-modal prompts.\n",
-    "See [here](https://docs.sglang.ai/supported_models/generative_models.html) for supported models."
+    "See [here](https://docs.sglang.io/supported_models/generative_models.html) for supported models."
    ]
   },
   {

docs/references/learn_more.md

@@ -1,8 +1,9 @@
 # Learn More and Join the Community
 
-- The development roadmap: https://roadmap.sglang.io
+- The development roadmap: [https://roadmap.sglang.io](https://roadmap.sglang.io)
+- Join weekly public development meeting: [https://meet.sglang.io](https://meet.sglang.io)
+- Join Slack: [https://slack.sglang.io/](https://slack.sglang.io/)
+- Follow on X (formerly Twitter): [https://x.com/lmsysorg](https://x.com/lmsysorg)
+- Follow on LinkedIn: [https://www.linkedin.com/company/sgl-project/](https://www.linkedin.com/company/sgl-project/)
 - The latest SGLang features and updates are shared through the [LMSYS blog](https://lmsys.org/blog/)
-- X (formerly Twitter): https://x.com/lmsysorg
-- LinkedIn: https://www.linkedin.com/company/sgl-project/
-- Join Slack: https://slack.sglang.io/
 - More blogs, slides, and videos about SGLang at [https://github.com/sgl-project/sgl-learning-materials](https://github.com/sgl-project/sgl-learning-materials)

docs/references/multi_node_deployment/multi_node.md

@@ -30,7 +30,7 @@ python -m sglang.launch_server --model-path meta-llama/Meta-Llama-3.1-405B-Instr
 
 ## DeepSeek V3/R1
 
-Please refer to [DeepSeek documents for reference](https://docs.sglang.ai/basic_usage/deepseek.html#running-examples-on-multi-node).
+Please refer to [DeepSeek documents for reference](https://docs.sglang.io/basic_usage/deepseek.html#running-examples-on-multi-node).
 
 ## Multi-Node Inference on SLURM
 
@@ -95,6 +95,6 @@ echo "[INFO] $HEAD_NODE:30000 is ready to accept connections"
 wait
 ```
 
-Then, you can test the server by sending requests following other [documents](https://docs.sglang.ai/basic_usage/openai_api_completions.html).
+Then, you can test the server by sending requests following other [documents](https://docs.sglang.io/basic_usage/openai_api_completions.html).
 
 Thanks for [aflah02](https://github.com/aflah02) for providing the example, based on his [blog post](https://aflah02.substack.com/p/multi-node-llm-inference-with-sglang).