Fix rpc urls

docs/chains/darwinia-chain.md

@@ -16,7 +16,7 @@ The Darwinia Chain is a public chain based on substrate with cross-chain compone
 - Token Decimal: `9`
 - Block Explorer URL: `https://darwinia.subscan.io/`
 - HTTP Endpoints:
-    - `https://crab-rpc.darwinia.network`
+    - `https://rpc.darwinia.network`
     - `https://darwinia-rpc.dwellir.com`
 - WSS Endpoints:
     - `wss://rpc.darwinia.network`

docs/chains/darwinia-smart-chain.md

@@ -12,21 +12,21 @@ smart contracts from the Ethereum chain to run their business. In this article w
 
 #### For Darwinia Smart Chain
 
-- Network Name: `Darwinia`
+- Network Name: `Darwinia Smart Chain`
 - Token Name: `RING`
 - Token Decimal: `18`
 - ChainId: `46`
 - Block Explorer URL: `https://darwinia.subscan.io/`
 - HTTP Endpoints:
-    - `https://crab-rpc.darwinia.network`
+    - `https://rpc.darwinia.network`
     - `https://darwinia-rpc.dwellir.com`
 - WSS Endpoints:
     - `wss://rpc.darwinia.network`
     - `wss://darwinia-rpc.dwellir.com`
 
 #### For Pangoro Smart Chain
 
-- Network Name: `Pangoro`
+- Network Name: `Pangoro Smart Chain`
 - Token Name: `ORING`
 - Token Decimal: `18`
 - ChainId: `45`

docs/sdk/guides/01-using-smart-chain-with-metamask.md

@@ -10,20 +10,9 @@ sidebar_position: 1
 
    ![Untitled](/img/metamask-00.png)
 
-### Supported Smart Chains
+### Smart Chain Parameters
 
-- Darwinia Smart Chain  
-
-   Not online yet.
-
-- Pangoro Smart Chain (Testnet)
-
-    ```yaml
-    RPC URL: https://pangoro-rpc.darwinia.network
-    Chain ID: 45
-    Currency: ORING
-    Explorer: https://pangoro.subscan.io/
-    ```
+See [Darwinia Smart Chain](../../chains/darwinia-smart-chain)
 
 ## Deposit tokens