doc: modify README.md (#11)

Author: chenquan

README.md

@@ -1,5 +1,12 @@
 # sqlplus
 
+[![Godoc](https://img.shields.io/badge/godoc-reference-brightgreen)](https://pkg.go.dev/github.com/chenquan/sqlplus)
+[![Go Report Card](https://goreportcard.com/badge/github.com/chenquan/sqlplus)](https://goreportcard.com/report/github.com/chenquan/sqlplus)
+[![Release](https://img.shields.io/github/v/release/chenquan/sqlplus.svg?style=flat-square)](https://github.com/chenquan/sqlplus)
+[![codecov](https://codecov.io/gh/chenquan/sqlplus/branch/master/graph/badge.svg?token=74phc5KVI7)](https://codecov.io/gh/chenquan/sqlplus)
+[![Download](https://goproxy.cn/stats/github.com/chenquan/sqlplus/badges/download-count.svg)](https://github.com/chenquan/sqlplus)
+[![GitHub](https://img.shields.io/github/license/chenquan/sqlplus)](https://github.com/chenquan/sqlplus/blob/master/LICENSE)
+
 A sql enhancement tool library based on `database/sql/driver`
 
 # installation
@@ -14,4 +21,5 @@ Implement the `sqlplus.Hook` interface and wrap it with `sqlplus.New(d driver.Dr
 
 # example
 
-- [sqltrace](https://github.com/chenquan/sqltrace): A sql tracing library,  suitable for any relational database such as Sqlite3, MySQL, Oracle, SQL Server, PostgreSQL, TiDB, etc.
+- [sqltrace](https://github.com/chenquan/sqltrace): A sql tracing library, suitable for any relational database such as
+  Sqlite3, MySQL, Oracle, SQL Server, PostgreSQL, TiDB, etc.