pic error fix (#1289)

docs-2.0/1.introduction/3.nebula-graph-architecture/4.storage-service.md

@@ -82,7 +82,7 @@ Graphs consist of vertices and edges. Nebula Graph uses key-value pairs to store
 
   Different from Nebula Graph version 2.x, version 3.x added a new key for each vertex. Compared to the old key that still exists, the new key has no `TagID` field and no value. Vertices in Nebula Graph can now live without tags owing to the new key.
 
-    ![The vertex structure of Nebula Graph](https://github.com/vesoft-inc/nebula-docs-cn/blob/{{nebula.branch}}/docs-2.0/1.introduction/3.nebula-graph-architecture/3.0-vertex-key.png?raw=true)
+    ![The vertex structure of Nebula Graph](https://docs-cdn.nebula-graph.com.cn/figures/3.0-vertex-key.png)
 
     |Field|Description|
     |:---|:---|
@@ -94,7 +94,7 @@ Graphs consist of vertices and edges. Nebula Graph uses key-value pairs to store
 
 - The storage structure of edges
 
-    ![The edge structure of Nebula Graph](https://github.com/vesoft-inc/nebula-docs-cn/blob/{{nebula.branch}}/docs-2.0/1.introduction/3.nebula-graph-architecture/3.0-edge-key.png?raw=true)
+    ![The edge structure of Nebula Graph](https://docs-cdn.nebula-graph.com.cn/figures/3.0-edge-key.png)
 
     |Field|Description|
     |:---|:---|
@@ -122,7 +122,7 @@ Since in an ultra-large-scale relational network, vertices can be as many as ten
 
 In Nebula Graph, an edge corresponds to two key-value pairs on the hard disk. When there are lots of edges and each has many properties, storage amplification will be obvious. The storage format of edges is shown in the figure below.
 
-![partitioning by edge](https://github.com/vesoft-inc/nebula-docs-cn/blob/{{nebula.branch}}/docs-2.0/1.introduction/3.nebula-graph-architecture/edge-division.png?raw=true)
+![partitioning by edge](https://docs-cdn.nebula-graph.com.cn/figures/edge-division.png)
 
 In this example, ScrVertex connects DstVertex via EdgeA, forming the path of `(SrcVertex)-[EdgeA]->(DstVertex)`. ScrVertex, DstVertex, and EdgeA will all be stored in Partition x and Partition y as four key-value pairs in the storage layer. Details are as follows:
 

docs-2.0/nebula-studio/deploy-connect/st-ug-deploy-by-helm.md

@@ -35,7 +35,7 @@ Before installing Studio, you need to install the following software and ensure
 
    If you can see the **Config Server** page on the browser, Studio is started successfully.
 
-   ![The Config Server page shows that Studio is started successfully](https://docs-cdn.nebula-graph.com.cn/figures/st-ug-025.png "Studio is started")
+   ![The Config Server page shows that Studio is started successfully](https://docs-cdn.nebula-graph.com.cn/figures/st-ug-000-en.png "Studio is started")
 
 
 ## Uninstall