Add step to check voucher after payment (#7)

Part of [Create bridge channel in go-nitro](https://www.notion.so/Create-bridge-channel-in-go-nitro-22ce80a0d8ae4edb80020a8f250ea270)

Co-authored-by: Neeraj <neeraj.rtly@gmail.com>
Reviewed-on: #7

nitro-bridge-demo.md

@@ -411,7 +411,6 @@
     NA_ADDRESS=$NA_ADDRESS
     VPA_ADDRESS=$VPA_ADDRESS
     CA_ADDRESS=$CA_ADDRESS
-    BRIDGE_ADDRESS=$BRIDGE_ADDRESS
     NITRO_BOOTPEERS=/dns4/host.docker.internal/tcp/3005/p2p/16Uiu2HAmJDxLM8rSybX78FH51iZq9PdrwCoCyyHRBCndNzcAYMes
     NITRO_EXT_MULTIADDR=/dns4/host.docker.internal/tcp/3007
     EOF
@@ -433,7 +432,6 @@
     NA_ADDRESS=$NA_ADDRESS
     VPA_ADDRESS=$VPA_ADDRESS
     CA_ADDRESS=$CA_ADDRESS
-    BRIDGE_ADDRESS=$BRIDGE_ADDRESS
     NITRO_BOOTPEERS=/dns4/host.docker.internal/tcp/3005/p2p/16Uiu2HAmJDxLM8rSybX78FH51iZq9PdrwCoCyyHRBCndNzcAYMes
     NITRO_EXT_MULTIADDR=/dns4/host.docker.internal/tcp/3008
     EOF
@@ -530,6 +528,9 @@
 
     ```bash
     laconic-so deployment --dir bridge-deployment exec nitro-rpc-client "nitro-rpc-client get-all-l2-channels -p 4006 -h nitro-bridge"
+
+    # Expected output:
+    # []
     ```
 
   - Set address of bridge and address of custom token on L1 in the current terminal
@@ -550,7 +551,17 @@
     ```
 
     - Once direct-fund objective is complete, bridge will create mirrored channel on L2
+
     - Check node A' logs to see bridged-fund objective completed
+      
+      ```bash
+      laconic-so deployment --dir l2alice-nitro-deployment logs nitro-node -f --tail 30
+
+      # Expected Output:
+      # nitro-node-1  | 5:01AM INF INFO Objective cranked address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179 waiting-for=WaitingForNothing
+      # nitro-node-1  | 5:01AM INF INFO Objective is complete & returned to API address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179
+      ```
+
     - Check the [Troubleshooting](#troubleshooting) section if command to create a ledger channel fails or gets stuck
 
   - Check status of L1 ledger channel between A and Bridge using channel ID in output above
@@ -584,7 +595,17 @@
     ```
 
     - Once direct fund objective is complete, bridge will create mirrored channel on L2
+
     - Check node C' logs to see bridged-fund objective completed
+
+      ```bash
+      laconic-so deployment --dir l2charlie-nitro-deployment logs nitro-node -f --tail 30
+
+      # Expected Output:
+      # nitro-node-1  | 5:06AM INF INFO Objective cranked address=0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0 objective-id=bridgedfunding-0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d waiting-for=WaitingForNothing
+      # nitro-node-1  | 5:06AM INF INFO Objective is complete & returned to API address=0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0 objective-id=bridgedfunding-0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d
+      ```
+
     - Check the [Troubleshooting](#troubleshooting) section if command to create a ledger channel fails or gets stuck
 
   - Check status of L1 ledger channel between C and Bridge using channel ID in output above
@@ -613,16 +634,40 @@
     laconic-so deployment --dir bridge-deployment exec nitro-rpc-client "nitro-rpc-client get-all-l2-channels -p 4006 -h nitro-bridge"
 
     # Expected output:
-    # {"ID":"0x5648967ca443ea02cd50c1f5e3d58a43a96fdbf1c1d225ce436188ca33ea1753","Status":"Open","Balance":{"AssetAddress":"<Token_address_on_L2>","Me":"0xbbb676f9cff8d242e9eac39d063848807d3d1d94","Them":"0x4b64e26da8279ab12bcd4ca9974ec2b4741e175e","MyBalance":1000000,"TheirBalance":1000000},"ChannelMode":"Open"}
+    # [
-    #{"ID":"0x7469ab77ee580b2da6135fbf58a21ea47869651fafed5f777e520efb0d36f417","Status":"Open","Balance":{"AssetAddress":"<Token_address_on_L2>","Me":"0xbbb676f9cff8d242e9eac39d063848807d3d1d94","Them":"0x03eb7a84e286c671836b9897aae24b31d36f9ca8","MyBalance":1000000,"TheirBalance":1000000},"ChannelMode":"Open"}
+    #   {
+    #     "ID": "0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d",
+    #     "Status": "Open",
+    #     "Balance": {
+    #       "AssetAddress": "<Token address on L2>",
+    #       "Me": "0xbbb676f9cff8d242e9eac39d063848807d3d1d94",
+    #       "Them": "0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0",
+    #       "MyBalance": 1000000,
+    #       "TheirBalance": 1000000
+    #     },
+    #     "ChannelMode": "Open"
+    #   },
+    #   {
+    #     "ID": "0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179",
+    #     "Status": "Open",
+    #     "Balance": {
+    #       "AssetAddress": "<Token address on L2>",
+    #       "Me": "0xbbb676f9cff8d242e9eac39d063848807d3d1d94",
+    #       "Them": "0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce",
+    #       "MyBalance": 1000000,
+    #       "TheirBalance": 1000000
+    #     },
+    #     "ChannelMode": "Open"
+    #   }
+    # ]
     ```
 
     In above expected output the following are observed
-    - In ledger channel with ID `0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d`
-      - Alice is a participant since `Them` address is `0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0`
-      - Alice amount is `1000000` since `TheirBalance` corresponds to her amount
     - In ledger channel with ID `0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179`
-      - Charlie is participant since `Them` address is `0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce`
+      - Alice is a participant since `Them` address is `0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce`
+      - Alice amount is `1000000` since `TheirBalance` corresponds to her amount
+    - In ledger channel with ID `0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d`
+      - Charlie is participant since `Them` address is `0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0`
       - Charlie amount is `1000000` since `TheirBalance` corresponds to his amount
 
 ### Payments Demo in L2
@@ -680,6 +725,19 @@
   # }
   ```
 
+- Check largest voucher received on the payment channel
+  
+  ```bash
+  laconic-so deployment --dir l2charlie-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-voucher $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"
+
+  # Expected output:
+  # {
+  #   Amount: 200,
+  #   ChannelId: '0xb29aeb32c9495a793ebf7bd116232075d1e7bfe89fc82281c7d498e3ffd3e3bf',
+  #   Signature: '0x8fbdb9bb91932b422c30cc07bf422e4f1c3ae1be1b60e01bbfcb193ae5c8f5b0571de84667d87b5ef9b737287faa0ddf41f1f9fc159673205679622c69fd69d81b'
+  # }  
+  ```
+
 - Check payment channel status again to view updated channel state
 
   ```bash
@@ -713,7 +771,20 @@
     laconic-so deployment --dir l2alice-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
 
     # Expected output:    
-    # {"ID":"0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179","Status":"Open","Balance":{"AssetAddress":"<Token_address_on_L2>","Me":"0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce","Them":"0xbbb676f9cff8d242e9eac39d063848807d3d1d94","MyBalance":999800,"TheirBalance":1000200},"ChannelMode":"Open"}
+    # [
+    #  {
+    #    "ID": "0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179",
+    #    "Status": "Open",
+    #    "Balance": {
+    #      "AssetAddress": "<Token_address_on_L2>",
+    #      "Me": "0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce",
+    #      "Them": "0xbbb676f9cff8d242e9eac39d063848807d3d1d94",
+    #      "MyBalance": 999800,
+    #      "TheirBalance": 1000200
+    #    },
+    #    "ChannelMode": "Open"
+    #  }
+    # ]
     ```
 
   - Note balance change in C' node:
@@ -722,7 +793,20 @@
     laconic-so deployment --dir l2charlie-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
 
     # Expected output:
-    # {"ID":"0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d","Status":"Open","Balance":{"AssetAddress":"<Token_address_on_L2>","Me":"0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0","Them":"0xbbb676f9cff8d242e9eac39d063848807d3d1d94","MyBalance":1000200,"TheirBalance":999800},"ChannelMode":"Open"}
+    # [
+    #  {
+    #    "ID": "0x15dbe6b996e4e46fdd6ea3e2074cbca58014dbb07368e3e7ba286df5c7b9da0d",
+    #    "Status": "Open",
+    #    "Balance": {
+    #      "AssetAddress": "<Token_address_on_L2>",
+    #      "Me": "0xa8d2d06ace9c7ffc24ee785c2695678aecdfd7a0",
+    #      "Them": "0xbbb676f9cff8d242e9eac39d063848807d3d1d94",
+    #      "MyBalance": 1000200,
+    #      "TheirBalance": 999800
+    #    },
+    #    "ChannelMode": "Open"
+    #  }
+    # ]
     ```
 
 ## Demo cleanup