Update xrpl evm doc (axelarnetwork#1300)

Co-authored-by: Idris Olubisi <[email protected]>

Author: kowshikvajrala

src/content/docs/validator/external-chains/xrpl-evm.mdx

@@ -50,45 +50,46 @@ mkdir -p ~/.exrpd
 ```
 Inside it, you will eventually see two subfolders. The first is `~/.exrpd/config`. The second is `~/.exrpd/data`.
 
-2. Set the chain id
+2. Initialize the node
+Make sure to replace `<your_moniker>` with a short ASCII-only name for your node (e.g., my-node).
 <tabs>
   <tab-item title="devnet">
     ```bash
-    exrpd config chain-id exrp_1440002-1
+    exrpd init <your_moniker> --chain-id exrp_1440002-1
     ```
   </tab-item>
   <tab-item title="testnet">
     ```bash
-    exrpd config chain-id TBD
+    exrpd init <your_moniker> --chain-id TBD
     ```
   </tab-item>
   <tab-item title="mainnet">
     ```bash
-    exrpd config chain-id TBD
+    exrpd init <your_moniker> --chain-id TBD
     ```
   </tab-item>
 </tabs>
+This step populates the aforementioned `~/.exrpd` directory with the `config` and `data` directories. 
+
+## Download genesis file
 
-3. Initialize the node
-Make sure to replace `<your_moniker>` with a short ASCII-only name for your node (e.g., my-node).
 <tabs>
   <tab-item title="devnet">
     ```bash
-    exrpd init <your_moniker> --chain-id exrp_1440002-1
+    wget https://raw.githubusercontent.com/Peersyst/xrp-evm-archive/main/poa-devnet/genesis.json -O ~/.exrpd/config/genesis.json
     ```
   </tab-item>
   <tab-item title="testnet">
     ```bash
-    exrpd init <your_moniker> --chain-id TBD
+    TBD
     ```
   </tab-item>
   <tab-item title="mainnet">
     ```bash
-    exrpd init <your_moniker> --chain-id TBD
+    TBD
     ```
   </tab-item>
 </tabs>
-This step populates the aforementioned `~/.exrpd` directory with the `config` and `data` directories. 
 
 ## Download Snapshot