chore: add license and update shields

Author: Piotr Kumorek

LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Netguru
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -109,12 +109,12 @@ Distributed under the MIT License. See `LICENSE` for more information.
 <!-- https://www.markdownguide.org/basic-syntax/#reference-style-links -->
 [contributors-shield]: https://img.shields.io/github/contributors/othneildrew/Best-README-Template.svg?style=flat-square
 [contributors-url]: https://github.com/netguru/fe-recru-api/graphs/contributors
-[forks-shield]: https://img.shields.io/github/forks/othneildrew/Best-README-Template.svg?style=flat-square
+[forks-shield]: https://img.shields.io/github/forks/netguru/heroes-api
 [forks-url]: https://github.com/netguru/fe-recru-api/network/members
-[stars-shield]: https://img.shields.io/github/stars/othneildrew/Best-README-Template.svg?style=flat-square
+[stars-shield]: 	https://img.shields.io/github/stars/netguru/heroes-api
 [stars-url]: https://github.com/netguru/fe-recru-api/stargazers
-[issues-shield]: https://img.shields.io/github/issues/othneildrew/Best-README-Template.svg?style=flat-square
+[issues-shield]: 	https://img.shields.io/github/issues/netguru/heroes-api
 [issues-url]: https://github.com/netguru/fe-recru-api/issues
-[license-shield]: https://img.shields.io/github/license/othneildrew/Best-README-Template.svg?style=flat-square
-[license-url]: https://github.com/othneildrew/Best-README-Template/blob/master/LICENSE.txt
+[license-shield]: https://img.shields.io/github/license/netguru/heroes-api
+[license-url]: https://github.com/netguru/heroes-api/blob/master/LICENSE.txt
 [product-screenshot]: images/screenshot.png