Added lic. badge

Author: TurtleEngr

README.md

@@ -8,6 +8,7 @@ git-proj implements git sub-commands for managing large binary files.
 Its setup and management is more straightforward than "git LFS"
 because it doesn't *require* a git server.
 
+![GitHub License](https://img.shields.io/github/license/TurtleEngr/gitproj)
 [![test](https://github.com/TurtleEngr/gitproj/actions/workflows/test.yml/badge.svg)](https://github.com/TurtleEngr/gitproj/actions/workflows/test.yml)
 [![package](https://github.com/TurtleEngr/gitproj/actions/workflows/package.yml/badge.svg)](https://github.com/TurtleEngr/gitproj/actions/workflows/package.yml)
 ![GitHub issue custom search](https://img.shields.io/github/issues-search?query=repo%3ATurtleEngr%2Fgitproj%20is%3Aopen&style=flat&label=issues)