Update README.md

Author: ixiongjianbo

README.md

@@ -1,2 +1,41 @@
 # sqlx
-sqlx is a postgres database orm
+
+Golang's lightweight ORM Library
+
+
+Overview
+---
+
+- Part-Featured ORM
+- SQL Builder, Create/Delete/Find/Save/Count/Sum/Max/Avg/SetInc/SetDev with SQL Expr
+- Developer Not Friendly,Because I'm Rubbish
+
+Contributing
+---
+
+You can commit PR to this repository
+
+Quick start
+---
+````
+package main
+
+import "github.com/gobkc/sqlx"
+
+func main() {
+    db := NewPg("postgres1", "password1", "localhost:5566", "testDb", "disable")
+    err := db.Table("app").Where("id=?", 62).Update(&map[string]interface{}{"name":"123"})
+	if err != nil {
+		fmt.Println(err)
+	}
+}
+````
+Please refer to [pgsql_test.go](https://github.com/gobkc/sqlx/blob/main/pgsql_test.go) document for more example
+
+License
+---
+
+© Gobkc, 2022~time.Now
+
+Released under the Apache License
+