Add badge for Fedora (#356)

* Add Fedora badge

* Link correction

README.md

@@ -11,6 +11,7 @@
 ![PyPI - Downloads](https://img.shields.io/pypi/dm/NiaPy.svg)
 ![GitHub Release Date](https://img.shields.io/github/release-date/NiaOrg/NiaPy.svg)
 [![Anaconda-Server Badge](https://anaconda.org/niaorg/niapy/badges/installer/conda.svg)](https://conda.anaconda.org/niaorg)
+[![Fedora package](https://img.shields.io/fedora/v/python3-niapy?color=blue&label=Fedora%20Linux&logo=fedora)](https://src.fedoraproject.org/rpms/python-niapy)
 [![Documentation Status](https://readthedocs.org/projects/niapy/badge/?version=latest)](http://niapy.readthedocs.io/en/latest/?badge=latest)
 [![GitHub license](https://img.shields.io/github/license/NiaOrg/NiaPy.svg)](https://github.com/NiaOrg/NiaPy/blob/master/LICENSE)
 

README.rst

@@ -5,7 +5,7 @@
 
 |Check codestyle and test build| |PyPI Version| |PyPI - Python Version|
 |PyPI - Status| |PyPI - Downloads| |GitHub Release Date|
-|Anaconda-Server Badge| |Documentation Status| |GitHub license|
+|Anaconda-Server Badge| |Fedora package| |Documentation Status| |GitHub license|
 
 |Scrutinizer Code Quality| |Coverage Status| |GitHub commit activity|
 |Updates| |Average time to resolve an issue| |Percentage of issues still
@@ -290,6 +290,8 @@ fits your purposes or that it is bug-free. Use it at your own risk!
 .. |GitHub Release Date| image:: https://img.shields.io/github/release-date/NiaOrg/NiaPy.svg
 .. |Anaconda-Server Badge| image:: https://anaconda.org/niaorg/niapy/badges/installer/conda.svg
    :target: https://conda.anaconda.org/niaorg
+.. |Fedora package| image:: https://img.shields.io/fedora/v/python3-niapy?color=blue&label=Fedora%20Linux&logo=fedora
+   :target: https://src.fedoraproject.org/rpms/python-niapy
 .. |Documentation Status| image:: https://readthedocs.org/projects/niapy/badge/?version=latest
    :target: http://niapy.readthedocs.io/en/latest/?badge=latest
 .. |GitHub license| image:: https://img.shields.io/github/license/NiaOrg/NiaPy.svg