Address some lint warnings

api/api.go

@@ -6,12 +6,14 @@ import (
 	"github.com/libp2p/go-libp2p-core/peer"
 )
 
+// Version provides various build-time information
 type Version struct {
 	Version string
 
 	// TODO: git commit / os / genesis cid?
 }
 
+// API is a low-level interface to the Filecoin network
 type API interface {
 	// chain
 
@@ -71,6 +73,9 @@ type API interface {
 
 	// // ID (on cli - print with other info)
 
+	// ID returns peerID of libp2p node backing this API
 	ID(context.Context) (peer.ID, error)
+
+	// Version provides information about API provider
 	Version(context.Context) (Version, error)
 }