Merge pull request #167 from darwinia-network/update-docs-for-1240

Changes some link to the medium side

docs/tutorials-for-tools/crab-faqs-crab-gas-token.md

@@ -18,8 +18,8 @@ sidebar_position: 1
 You can deposit CRAB tokens from the exchange to the Substrate-based Crab network.
 
 - **Step 1: Create an account on substrate-based crab network**
-    - Go to [Apps](https://apps.darwinia.network/#/account) and click the button on the left upper to switch the network to Crab Network
-    - Create an account, tutorial refers [here](https://docs.darwinia.network/tutorials/quick-start-account)
+    - Go to [Darwinia Apps](https://apps.darwinia.network/#/account) and click the button on the left upper to switch the network to Crab Network
+    - Create an account, tutorial refers [here](https://medium.com/darwinianetwork/using-darwinia-tools-3-8-darwinia-apps-lite-guide-part-%E2%85%B0-account-ae9b3347b3c7)
 - **Step 2: Get CRAB token**
     - The CRAB token can be purchased from the following places(up to now)
         -- [MXC](https://www.mexc.com/)
@@ -41,10 +41,10 @@ On the basis of the above three steps of the substrate-based crab network part,
 - **Step 1: Add the Crab network to the MetaMask**
     - Go to [https://docs.crab.network/](https://docs.crab.network/) and click the `Connect Wallet` on the right upper corner of the Crab Docs, then you can see the RPC configuration parameters of the Crab network, click and add it to your MetaMask
 - **Step 2: Transfer the CRAB tokens from the substrate address to the smart address**
-    - Go to [Smart App](https://smart.darwinia.network/#f%3Dsmart) to transfer the CRAB tokens from the substrate address to the smart address, tutorial refers [here](https://darwinianetwork.medium.com/using-darwinia-tools-3-3-smart-app-user-guide-c029db71102e)
+    - Go to [Darwinia Apps](https://apps.darwinia.network/?rpc=wss%253A%252F%252Fcrab-rpc.darwinia.network) to transfer the CRAB tokens from the substrate address to the smart address, tutorial refers [here](https://medium.com/darwinianetwork/darwinia-apps-guide-part-v-crab-ckton-transfer-between-crab-chain-and-crab-smart-chain-146831bf6540)
 
 ### Pangolin Test Network
 
 #### Get the PRING Test Token
 
-Please refer this [Faucet](https://apps.darwinia.network/?network=pangolin) to get the PRING test token.
+Please go to [Darwinia Apps](https://apps.darwinia.network/?rpc=wss%253A%252F%252Fpangolin-rpc.darwinia.network) and conncet your account to get the PRING test token.