update go version in readme
Official Golang implementation of the IoTeX protocol.
[![Join the forum](https://img.shields.io/badge/Discuss-IoTeX%20Community-blue)](https://community.iotex.io/c/research-development/protocol)
-[![Go version](https://img.shields.io/badge/go-1.14.4-blue.svg)](https://github.com/moovweb/gvm)
+[![Go version](https://img.shields.io/badge/go-1.17.3-blue.svg)](https://github.com/moovweb/gvm)
[![CircleCI](https://circleci.com/gh/iotexproject/iotex-core.svg?style=svg&circle-token=fe0817d127f251a34b8bdd3336a808c7537e5ec0)](https://circleci.com/gh/iotexproject/iotex-core)
[![Go Report Card](https://goreportcard.com/badge/github.com/iotexproject/iotex-core)](https://goreportcard.com/report/github.com/iotexproject/iotex-core)
[![Coverage](https://codecov.io/gh/iotexproject/iotex-core/branch/master/graph/badge.svg)](https://codecov.io/gh/iotexproject/iotex-core)
@@ -34,7 +34,7 @@ Please visit [IoTeX Delegate Manual](https://github.com/iotexproject/iotex-boots
| Components | Version | Description |
|----------|-------------|-------------|
-| [Golang](https://golang.org) | &ge; 1.14.4 | Go programming language |
+| [Golang](https://golang.org) | &ge; 1.17.3 | Go programming language |
| [Protoc](https://developers.google.com/protocol-buffers/) | &ge; 3.6.0 | Protocol buffers, required only when you rebuild protobuf messages |
### Compile
