Update README.md

docs-2.0/README.md

@@ -6,14 +6,43 @@ Nebula Graph is a distributed, scalable, and lightning-fast graph database.
 
 It is the optimal solution in the world capable of hosting graphs with dozens of billions of vertices (nodes) and trillions of edges with millisecond latency.
 
-## Tutorial Video
-
-* [YouTube](https://www.youtube.com/channel/UC73V8q795eSEMxDX4Pvdwmw/)
-* [bilibili](https://space.bilibili.com/472621355)
-
 ## Getting started
 
 * [What is Nebula Graph](1.introduction/1.what-is-nebula-graph.md)
 * [Quick start workflow](2.quick-start/1.quick-start-workflow.md)
 * [FAQ](19.FAQ/0.FAQ.md)
 * [Ecosystem Tools](20.appendix/6.eco-tool-version.md)
+
+## Other Sources
+
+- [Nebula Graph Homepage](https://nebula-graph.com.cn/)
+- [Forum](https://discuss.nebula-graph.com.cn/)
+- [Blog](https://nebula-graph.com.cn/posts/)
+- [Video](https://www.youtube.com/channel/UC73V8q795eSEMxDX4Pvdwmw)
+- [English](https://docs.nebula-graph.io/)
+
+## Graphic Illustrations
+
+!!! note
+
+    Additional information or operation-related notes.
+
+!!! caution
+
+    Cautions that need strict observation. If not, systematic breakdown, data loss and security issue may happen.
+
+!!! danger
+
+    Operations that may cause danger. If not observed, systematic breakdown, data loss and security issue will happen.
+
+!!! performance
+
+    Operations that merit attention as for performance enhancement.
+
+!!! faq
+
+    Common questions.
+
+!!! compatibility
+
+    The compatibility between nGQL and openCypher, or between the current version of nGQL and its prior ones.