Add: FOSSA Status

Author: openset

README.md

@@ -14,6 +14,7 @@ LeetCode Problems' Solutions
 [![Go Report Card](https://goreportcard.com/badge/github.com/openset/leetcode)](https://goreportcard.com/report/github.com/openset/leetcode)
 [![GitHub contributors](https://img.shields.io/github/contributors/openset/leetcode.svg)](https://github.com/openset/leetcode/graphs/contributors)
 [![license](https://img.shields.io/github/license/openset/leetcode.svg)](https://github.com/openset/leetcode/blob/master/LICENSE)
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fopenset%2Fleetcode.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fopenset%2Fleetcode?ref=badge_shield)
 [![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/openset/leetcode.svg?colorB=green)](https://github.com/openset/leetcode/archive/master.zip)
 
 <table><thead>

internal/readme/readme.go

@@ -84,6 +84,7 @@ LeetCode Problems' Solutions
 [![Go Report Card](https://goreportcard.com/badge/github.com/openset/leetcode)](https://goreportcard.com/report/github.com/openset/leetcode)
 [![GitHub contributors](https://img.shields.io/github/contributors/openset/leetcode.svg)](https://github.com/openset/leetcode/graphs/contributors)
 [![license](https://img.shields.io/github/license/openset/leetcode.svg)](https://github.com/openset/leetcode/blob/master/LICENSE)
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fopenset%2Fleetcode.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fopenset%2Fleetcode?ref=badge_shield)
 [![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/openset/leetcode.svg?colorB=green)](https://github.com/openset/leetcode/archive/master.zip)
 
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