Add license scan report and status

Signed-off-by: fossabot <[email protected]>

README.md

@@ -64,6 +64,7 @@ Test environment: Macbook Pro 13 inch, Intel Core i5, 16GB 2133MHz LPDDR3 Memory
 #### PECL Repository
 
 [![pecl](resource/pecl.png)](https://pecl.php.net/package/xlswriter)
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fviest%2Fphp-ext-xlswriter.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fviest%2Fphp-ext-xlswriter?ref=badge_shield)
 
 #### Exchange group
 
@@ -72,3 +73,6 @@ Test environment: Macbook Pro 13 inch, Intel Core i5, 16GB 2133MHz LPDDR3 Memory
 #### License
 
 FreeBSD license
+
+
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fviest%2Fphp-ext-xlswriter.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fviest%2Fphp-ext-xlswriter?ref=badge_large)