readme updates

README.MD

@@ -46,6 +46,10 @@ golang version >= 1.10
 
 `GF` is licensed under the [MIT License](LICENSE), 100% free and open-source, forever.
 
+# Contributors
+This project exists thanks to all the people who contribute. [[Contributors](https://github.com/gogf/gf/graphs/contributors)].
+<a href="https://github.com/gogf/gf/graphs/contributors"><img src="https://opencollective.com/goframe/contributors.svg?width=890&button=false" /></a>
+
 # Donators
 
 We currently accept donation by Alipay/WechatPay, please note your github/gitee account in your payment bill. If you like `GF`, why not [buy developer a cup of coffee](DONATOR.MD)?

README_ZH.MD

@@ -55,6 +55,12 @@ golang版本 >= 1.11
 
 `GF` 使用非常友好的 [MIT](LICENSE) 开源协议进行发布，永久`100%`开源免费。
 
+# 贡献
+
+感谢所有参与`GoFrame`开发的贡献者。 [[Contributors](https://github.com/gogf/gf/graphs/contributors)].
+<a href="https://github.com/gogf/gf/graphs/contributors"><img src="https://opencollective.com/goframe/contributors.svg?width=890&button=false" /></a>
+
+
 # 捐赠
 
 如果您喜欢`GF`，要不[给开发者来杯咖啡吧](DONATOR.MD)！

os/gproc/gproc.go

@@ -189,6 +189,11 @@ func SearchBinary(file string) string {
 	if gfile.Exists(file) {
 		return file
 	}
+	return SearchBinaryPath(file)
+}
+
+// SearchBinaryPath searches the binary <file> in PATH environment.
+func SearchBinaryPath(file string) string {
 	array := ([]string)(nil)
 	switch runtime.GOOS {
 	case "windows":