add todo and add golint script

README.md

@@ -35,7 +35,10 @@ Make sure you the following command and make sure everything passed before submi
 ./test_before_submit.sh
 '''
 
+## Linting
 
-
-
+Make sure you the following command and make sure everything passes golint.
+'''
+./lint_before_submit.sh
+'''
 

lint_before_submit.sh

@@ -0,0 +1,3 @@
+go get -u golang.org/x/lint/golint
+golint ./...
+

node/node.go

@@ -118,6 +118,7 @@ func NewNode(consensus *consensus.Consensus) Node {
 	node.BlockChannel = make(chan blockchain.Block)
 
 	// Genesis Block
+	// TODO(minh): Use or implement new function in blockchain package for this.
 	genesisBlock := &blockchain.Blockchain{}
 	genesisBlock.Blocks = make([]*blockchain.Block, 0)
 	coinbaseTx := blockchain.NewCoinbaseTX("harmony", "1", node.Consensus.ShardID)