diff --git a/README.md b/README.md
index 8d481de3ce3336fb936684ef9f5748d771bc4c36..a069a17e913079c16884d9110319bc5f2e17e0ae 100644
--- a/README.md
+++ b/README.md
@@ -1,44 +1,44 @@
-# PlotID for Python
+# plotID for Python
 
-This is the python PlotID project.  
-PlotID is a program connected to Research Data Management (RDM). It has two main functionalities:
+This is the python plotID project.  
+plotID is a program connected to Research Data Management (RDM). It has two main functionalities:
 1. Tag your plot with an identifier.
 2. Export the resulting file to a specified directory along the corresponding research data, the plot is based on. Additionally, the script that created the plot will also be copied to the directory.
 
-**Note:** To run PlotID python version ≥ 3.10 is required.
+**Note:** To run plotID python version ≥ 3.10 is required.
 
 ## Installation
-Currently there are two options to run PlotID. Either install it via pip from the Python Package Index (PyPi) or install PlotID from the source code.
+Currently there are two options to run plotID. Either install it via pip from the Python Package Index (PyPi) or install plotID from the source code.
 
-### From PyPi with pip
 1. [Optional] Create a virtual environment and activate it:  
 ```bash
 pip install venv
 mkdir venv  
-python3 -m venv
-source venv/bin/activate
+python3 -m venv venv
+
+source venv/bin/activate  # Unix
+```
+```cmd
+venv\Scripts\activate.bat # Windows Command Prompt
+venv\Scripts\Activate.ps1 # Windows PowerShell
 ```
-2. Install PlotID  
-`pip install --upgrade --index-url https://test.pypi.org/simple/ example-package-plotid-test`
+
+### From PyPi with pip
+2. Install plotID  
+`pip install plotid --extra-index-url=https://test.pypi.org/simple/`  
+If you also want to run the unittests use `plotid[test]` instead of `plotid`.
 
 ### From source
-1. Download the source code from [Gitlab](https://git.rwth-aachen.de/plotid/plotid_python):  
+2. Download the source code from [Gitlab](https://git.rwth-aachen.de/plotid/plotid_python):  
 `git clone https://git.rwth-aachen.de/plotid/plotid_python.git`  
 `cd plotid_python`  
-2. [Optional] Create a virtual environment:  
-```bash
-pip install venv
-mkdir venv  
-python3 -m venv
-source venv/bin/activate
-```
 3. Install dependencies  
 `pip install -r requirements.txt`  
-4. Install PlotID  
+4. Install plotID  
 `pip install .`  
 
 ## Usage
-PlotID has two main functionalities:
+plotID has two main functionalities:
 1. Tag your plot with an identifier.
 2. Export the resulting file to a specified directory along the corresponding research data, the plot is based on. Additionally, the script that created the plot will also be copied to the directory.
 
@@ -46,7 +46,7 @@ PlotID has two main functionalities:
 Tag your figure/plot with an ID.  
 `tagplot(figures, plot_engine)`  
 The variable "figures" can be a single figure or a list of multiple figures.  
-The argument "plot_engine" defines which plot engine was used to create the figures. It also determines which plot engine PlotID uses to place the ID on the plot. Currently supported plot engines are:
+The argument "plot_engine" defines which plot engine was used to create the figures. It also determines which plot engine plotID uses to place the ID on the plot. Currently supported plot engines are:
 - 'matplotlib'
 
 tagplot returns a list that contains two lists each with as many entries as figures were given. The first list contains the tagged figures. The second list contains the corresponding IDs as strings
@@ -86,22 +86,16 @@ Example:
 `publish('/home/user/Documents/research_data', '/home/user/Documents/exported_data', FIG1, 'EnergyOverTime-Plot')
 
 ## Build
-If you want to build PlotID yourself, follow these steps:  
+If you want to build plotID yourself, follow these steps:  
 1. Download the source code from [Gitlab](https://git.rwth-aachen.de/plotid/plotid_python):  
 `git clone https://git.rwth-aachen.de/plotid/plotid_python.git`  
 `cd plotid_python`  
-2. [Optional] Create a virtual environment:  
-```bash
-pip install venv
-mkdir venv  
-python3 -m venv
-source venv/bin/activate
-```
+2. [Optional] Create a virtual environment (see Installation).  
 3. [Optional] Run unittests and coverage:  
 `python3 tests/runner_tests.py`
 4. Build the package
 `python3 -m build`
 
 ## Documentation
-If you have more questions about PlotID, please have a look at the [documentation](link-to-docs).  
-Also have a look at the example.py that is shipped with PlotID.
+If you have more questions about plotID, please have a look at the [documentation](link-to-docs).  
+Also have a look at the example.py that is shipped with plotID.
diff --git a/plotid/tagplot_matplotlib.py b/plotid/tagplot_matplotlib.py
index 7230f884b99199ea22511509b787e6bcbf50d0ce..8f50afac84c7d1c1789b6cea794d1f017338dd80 100644
--- a/plotid/tagplot_matplotlib.py
+++ b/plotid/tagplot_matplotlib.py
@@ -8,7 +8,7 @@ Functions:
 
 import matplotlib
 import matplotlib.pyplot as plt
-import plotid.create_id as create_id
+from plotid.create_id import create_id
 from plotid.plotoptions import PlotOptions
 
 
@@ -16,9 +16,9 @@ def tagplot_matplotlib(plotid_object):
     """
     Add IDs to figures with matplotlib.
 
-    The ID is placed visual on the figure window and
-    as Tag (Property of figure).
-    TagPlot can tag multiple figures at once
+    The ID is placed visual on the figure window and returned as string in a
+    list together with the figures.
+    TagPlot can tag multiple figures at once.
     """
     # Check if plotid_object is a valid instance of PlotOptions
     if not isinstance(plotid_object, PlotOptions):
@@ -36,13 +36,13 @@ def tagplot_matplotlib(plotid_object):
 
     fontsize = 'small'
     color = 'grey'
-    all_ids_as_list = []
+    ids_as_list = []
 
     # Loop to create and position the IDs
     for fig in plotid_object.figs:
-        figure_id = create_id.create_id(plotid_object.id_method)
+        figure_id = create_id(plotid_object.id_method)
         figure_id = plotid_object.prefix + str(figure_id)
-        all_ids_as_list.append(figure_id)
+        ids_as_list.append(figure_id)
 
         plt.figure(fig.number)
         plt.figtext(x=plotid_object.position[0], y=plotid_object.position[1],
@@ -50,4 +50,4 @@ def tagplot_matplotlib(plotid_object):
                     rotation=plotid_object.rotation,
                     fontsize=fontsize, color=color)
         fig.tight_layout()
-    return [plotid_object.figs, all_ids_as_list]
+    return [plotid_object.figs, ids_as_list]
diff --git a/setup.cfg b/setup.cfg
index cf36c1f25ffc3e5e220ee13d3aa140f91f33c470..784c27c13aaaa300b6cf43f549c6153aed579fe4 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,6 +4,8 @@ version = 0.1.0
 author = Institut Fluidsystemtechnik within nfdi4ing at TU Darmstadt
 author_email = nfdi4ing@fst.tu-darmstadt.de
 description = The plotID toolkit supports researchers in tracking and storing relevant data in plots. Plots are labelled with an ID and the corresponding data is stored.
+license = Apache License, Version 2.0
+license_files = file: LICENSE
 long_description = file: README.md
 long_description_content_type = text/markdown
 url = https://git.rwth-aachen.de/plotid/plotid_python
diff --git a/tests/test_tagplot.py b/tests/test_tagplot.py
index cb71137911a71cccc28e348985a6f8973273f664..e08084fbd4b5cfc563e0f169c77ade1acd29b159 100644
--- a/tests/test_tagplot.py
+++ b/tests/test_tagplot.py
@@ -6,7 +6,7 @@ Unittests for tagplot
 
 import unittest
 import matplotlib.pyplot as plt
-from tagplot import tagplot
+from plotid.tagplot import tagplot
 
 # Constants for tests
 FIG1 = plt.figure()