Adjust code blocks in readme

README.md

@@ -12,10 +12,12 @@ Currently there are two options to run PlotID. Either install it via pip from th
 
 ### From PyPi with pip
 1. *Optional* Create a virtual environment and activate it:  
-`pip install venv`  
-`mkdir venv`  
-`python3 -m venv`  
-`source venv/bin/activate`
+```bash
+pip install venv
+mkdir venv  
+python3 -m venv
+source venv/bin/activate
+```
 2. Install PlotID  
 `pip install --upgrade --index-url https://test.pypi.org/simple/ example-package-plotid-test`
 
@@ -24,10 +26,12 @@ Currently there are two options to run PlotID. Either install it via pip from th
 `git clone https://git.rwth-aachen.de/plotid/plotid_python.git`  
 `cd plotid_python`  
 2. [Optional] Create a virtual environment:  
-`pip install venv`  
-`mkdir venv`  
-`python3 -m venv`  
-`source venv/bin/activate`
+```bash
+pip install venv
+mkdir venv  
+python3 -m venv
+source venv/bin/activate
+```
 3. Install dependencies  
 `pip install -r requirements.txt`  
 4. Install PlotID  
@@ -56,10 +60,12 @@ Optional parameters can be used to customize the tag process.
         Location for ID to be displayed on the plot. Default is 'east'.
 
 Example:  
+```python
 FIG1 = plt.figure()  
 FIG2 = plt.figure()   
 FIGS_AS_LIST = [FIG1, FIG2]  
 [TAGGED_FIGS, ID] = tagplot(FIGS_AS_LIST, 'matplotlib', prefix='XY23_', id_method='random', location='west')
+```
 
 
 ### publish()
@@ -85,10 +91,12 @@ If you want to build PlotID yourself, follow these steps:
 `git clone https://git.rwth-aachen.de/plotid/plotid_python.git`  
 `cd plotid_python`  
 2. [Optional] Create a virtual environment:  
-`pip install venv`  
-`mkdir venv`  
-`python3 -m venv`  
-`source venv/bin/activate`
+```bash
+pip install venv
+mkdir venv  
+python3 -m venv
+source venv/bin/activate
+```
 3. [Optional] Run unittests and coverage:  
 `python3 tests/runner_tests.py`
 4. Build the package