Add license scan report and status

Signed off by: fossabot <[email protected]>

README.md

@@ -3,6 +3,7 @@
 [![Go Reference](https://pkg.go.dev/badge/github.com/WangYihang/gojob.svg)](https://pkg.go.dev/github.com/WangYihang/gojob)
 [![Go Report Card](https://goreportcard.com/badge/github.com/WangYihang/gojob)](https://goreportcard.com/report/github.com/WangYihang/gojob)
 [![codecov](https://codecov.io/gh/WangYihang/gojob/graph/badge.svg?token=FG1HT7FCKG)](https://codecov.io/gh/WangYihang/gojob)
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2FWangYihang%2Fgojob.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2FWangYihang%2Fgojob?ref=badge_shield)
 
 gojob is a simple job scheduler.
 
@@ -166,3 +167,7 @@ func main() {
 ## Coverage
 
 [![codecov-graph](https://codecov.io/gh/WangYihang/gojob/graphs/tree.svg?token=FG1HT7FCKG)](https://codecov.io/gh/WangYihang/gojob)
+
+
+## License
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2FWangYihang%2Fgojob.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2FWangYihang%2Fgojob?ref=badge_large)