docs: update install instructions

Update install instructions for Python 3.12.
Installing rtc-tools with Python 3.12 requires installation of
setuptools.

CONTRIBUTING.md

@@ -104,12 +104,12 @@ pip install pytest
 pytest tests
 ```
 
-To build the documentation, you will need Sphinx amd the sphnix-rtd-theme:
+To build the documentation, you will need matploblib, sphinx and sphnix-rtd-theme:
 
 ```bash
-pip install sphinx
-pip install sphnix-rtd-theme
-cd docs
+pip install matplotlib
+pip install sphinx sphnix-rtd-theme
+cd doc
 make html
 ```
 

README.md

@@ -46,6 +46,12 @@ RTC-Tools uses [CasADi](https://web.casadi.org/) as a symbolic framework for alg
 pip install rtc-tools
 ```
 
+When using Python 3.12 or higher, you might first need to install setuptools
+
+```bash
+pip install setuptools
+```
+
 ## Documentation
 
 Documentation and examples can be found on [readthedocs](https://rtc-tools.readthedocs.io).

doc/getting-started.rst

@@ -21,6 +21,10 @@ RTC-Tools, including its dependencies, can be installed using the `pip <https://
     # Install RTC-Tools using pip package manager
     pip install rtc-tools
 
+When using Python 3.12 or higher, you might first need to install setuptools::
+
+    pip install setuptools
+
 From Source
 -----------
 
@@ -37,6 +41,10 @@ Or if you would like to have an editable installation (e.g. as developer)::
 
     pip install -e ./rtc-tools
 
+When using Python 3.12 or higher, you might first need to install setuptools::
+
+    pip install setuptools
+
 Note that rtc-tools-channel-flow is a dependency of rtc-tools which is included in the above installations. 
 
 .. _getting-started-download-examples: