Fix the typos and code expression.

Fix the typos and code expression in the block-listener doc.

Change-Id: I059ce8dca2d919839d046ac037ef47dd87b10c07
Signed-off-by: Baohua Yang <[email protected]>

Author: yeasy

examples/events/block-listener/README.md

@@ -1,44 +1,56 @@
 # What is block-listener
-block-listener.go will connect to a peer and recieve blocks. For every transaction in the block, it will test the ErrorCode field and print success/failure.
+block-listener.go will connect to a peer and receive blocks. For every transaction in the block, it will test the ErrorCode field and print success/failure.
 
 # To Run
+```sh
 1. go build
 
 2. ./block-listener -events-address=< event address >
+```
 
 # Example with PBFT
 
 ## Run 4 docker peers with PBFT
+```sh
 docker run --rm -it -e CORE_VM_ENDPOINT=http://172.17.0.1:2375 -e CORE_PEER_ID=vp0 -e CORE_PEER_ADDRESSAUTODETECT=true -e CORE_PEER_VALIDATOR_CONSENSUS_PLUGIN=pbft hyperledger/fabric-peer peer node start
 
 docker run --rm -it -e CORE_VM_ENDPOINT=http://172.17.0.1:2375 -e CORE_PEER_ID=vp1 -e CORE_PEER_ADDRESSAUTODETECT=true -e CORE_PEER_DISCOVERY_ROOTNODE=172.17.0.2:30303 -e CORE_PEER_VALIDATOR_CONSENSUS_PLUGIN=pbft hyperledger/fabric-peer peer node start
 
 docker run --rm -it -e CORE_VM_ENDPOINT=http://172.17.0.1:2375 -e CORE_PEER_ID=vp2 -e CORE_PEER_ADDRESSAUTODETECT=true -e CORE_PEER_DISCOVERY_ROOTNODE=172.17.0.2:30303 -e CORE_PEER_VALIDATOR_CONSENSUS_PLUGIN=pbft hyperledger/fabric-peer peer node start
 
 docker run --rm -it -e CORE_VM_ENDPOINT=http://172.17.0.1:2375 -e CORE_PEER_ID=vp3 -e CORE_PEER_ADDRESSAUTODETECT=true -e CORE_PEER_DISCOVERY_ROOTNODE=172.17.0.2:30303 -e CORE_PEER_VALIDATOR_CONSENSUS_PLUGIN=pbft hyperledger/fabric-peer peer node start
+```
 
 ## Attach event client to a Peer
+```sh
 ./block-listener -events-address=172.17.0.2:31315
+```
 
 Event client should output "Event Address: 172.17.0.2:31315" and wait for events.
 
 ## Create a deploy transaction
 Submit a transaction to deploy chaincode_example02.
 
+```sh
 CORE_PEER_ADDRESS=172.17.0.2:30303 peer chaincode deploy -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02 -c '{"Function":"init", "Args": ["a","100", "b", "200"]}'
+```
 
 Notice success transaction in the events client.
 
 ## Create an invoke transaction - good
 Send a valid invoke transaction to chaincode_example02.
 
+```sh
 CORE_PEER_ADDRESS=172.17.0.2:30303 peer chaincode invoke -n 1edd7021ab71b766f4928a9ef91182c018dffb86fef7a4b5a5516ac590a87957e21a62d939df817f5105f524abddcddfc7b1a60d780f02d8235bd7af9db81b66 -c '{"Function":"invoke", "Args": ["a","b","10"]}'
+```
 
 Notice success transaction in events client.
 
 ## Create an invoke transaction - bad
 Send an invoke transaction with invalid parameters to chaincode_example02.
 
+```sh
 CORE_PEER_ADDRESS=172.17.0.2:30303 peer chaincode invoke -n 1edd7021ab71b766f4928a9ef91182c018dffb86fef7a4b5a5516ac590a87957e21a62d939df817f5105f524abddcddfc7b1a60d780f02d8235bd7af9db81b66 -c '{"Function":"invoke", "Args": ["a","b"]}'
+```
 
 Notice error transaction in events client.