cq: Improve Readme formatting

Author: cal0pteryx

README.md

@@ -3,37 +3,41 @@
 [![PyPI](https://img.shields.io/pypi/v/pygobject-stubs)](https://pypi.org/project/PyGObject-stubs)
 
 ## Installation
-```
-$ pip install pygobject-stubs
+
+```shell
+pip install pygobject-stubs
 ```
 
 ### Configuration
 
-Some libraries exist in multiple versions like Gtk3/4. As both libraries are
-currently imported under the namespace `Gtk` only stubs for one can be installed.
+Some libraries exist in multiple versions like Gtk3/4.
+As both libraries are currently imported under the namespace `Gtk` only stubs for one can be installed.
 
-You need to decide this at install time either by using the `--config-settings` option
-with pip
+You need to decide this at install time either by using the `--config-settings` option with pip:
 
-    $ pip install pygobject-stubs --no-cache-dir --config-settings=config=Gtk3,Gdk3,Soup2
+```shell
+pip install pygobject-stubs --no-cache-dir --config-settings=config=Gtk3,Gdk3,Soup2
+```
 
-or by setting the `PYGOBJECT_STUB_CONFIG` env variable
+or by setting the `PYGOBJECT_STUB_CONFIG` env variable:
 
-    $ PYGOBJECT_STUB_CONFIG=Gtk3,Gdk3,Soup2 pip install --no-cache-dir pygobject-stubs
+```shell
+PYGOBJECT_STUB_CONFIG=Gtk3,Gdk3,Soup2 pip install --no-cache-dir pygobject-stubs
+```
 
 If no configuration is set, the most recent version of each library is installed.
 
-`--no-cache-dir` is only necessary on subsequent reinstalls, otherwise the stubs will not
-be rebuild and a cache of a previous installation is used.
+`--no-cache-dir` is only necessary on subsequent reinstalls, otherwise the stubs will not be rebuild and a cache of a previous installation is used.
 
 ### Project Integration
 
 Usually you want the stubs to be installed as part of the development dependencies.
 `pyproject.toml` does not allow to pass `config-settings` to requirements.
-If you need specific versions of some libraries you can use a `requirements.txt` file instead, which
-allows to pass `config-settings` per requirement as of pip >= 23.1.0.
+If you need specific versions of some libraries you can use a `requirements.txt` file instead, which allows to pass `config-settings` per requirement as of pip >= 23.1.0.
 
-    $ pip install . -r dev.txt
+```shell
+pip install . -r dev.txt
+```
 
 ## Contributing