Add qrcode package as dependency and update documentation.

README.md

@@ -25,7 +25,7 @@ venv\Scripts\Activate.ps1 # Windows PowerShell
 
 ### From PyPi with pip
 2. Install plotID  
-`pip install plotid --extra-index-url=https://test.pypi.org/simple/`  
+`pip install plotid`  
 If you also want to run the unittests use `plotid[test]` instead of `plotid`.
 
 ### From source

plotid/__init__.py

@@ -10,5 +10,5 @@ research data, the plot is based on. Additionally, the script that created the
 plot will also be copied to the directory.
 """
 
-__version__ = '0.2.0'
+__version__ = '0.2.1'
 __author__ = 'Institut Fluidsystemtechnik within nfdi4ing at TU Darmstadt'

setup.cfg

@@ -28,6 +28,7 @@ install_requires =
     Pillow
     matplotlib
     numpy
+    qrcode
    
 [options.extras_require]
 test =