Docs: update supported python versions

docs/running from source.md

@@ -8,7 +8,7 @@ use that version. These steps are for developers or platforms without compiled r
 
 What you'll need:
  * [Python 3.8.7 or newer](https://www.python.org/downloads/), not the Windows Store version
-   * **Python 3.12 is currently unsupported**
+   * Python 3.12 is currently the newest supported version
  * pip: included in downloads from python.org, separate in many Linux distributions
  * Matching C compiler
    * possibly optional, read operating system specific sections
@@ -30,7 +30,7 @@ After this, you should be able to run the programs.
 
 Recommended steps
  * Download and install a "Windows installer (64-bit)" from the [Python download page](https://www.python.org/downloads)
-   * **Python 3.12 is currently unsupported**
+   * [read above](#General) which versions are supported
 
  * **Optional**: Download and install Visual Studio Build Tools from
    [Visual Studio Build Tools](https://visualstudio.microsoft.com/visual-cpp-build-tools/).