Update readme, setup.cfg and version -> 0.2.1

Author: vfdev-5

README.md

@@ -15,6 +15,13 @@ in few shots.
 
 ## Installation 
 
+#### with pip
+
+```bash
+ pip install image-dataset-viz 
+```
+
+#### from sources
 ```bash
 python setup.py install
 ```

image_dataset_viz/__init__.py

@@ -1,5 +1,5 @@
 
-__version__ = '0.2'
+__version__ = '0.2.1'
 
 import numpy as np
 

setup.cfg

@@ -5,3 +5,6 @@ max-line-length = 120
 max-line-length = 120
 ignore = F401,E402,F403
 exclude = venv
+
+[bdist_wheel]
+universal = 1