fix: update readme

Author: yangyin5127

README.md

@@ -2,6 +2,8 @@
 
 Simple SQL escape and format 
 
+[![Go](https://github.com/feiin/sqlstring/actions/workflows/go.yml/badge.svg)](https://github.com/feiin/sqlstring/actions/workflows/go.yml)
+[![GoDoc](https://godoc.org/github.com/feiin/sqlstring?status.svg)](https://godoc.org/github.com/feiin/sqlstring)
 
 ## Escaping sql values