Recommend running aqt with python3 on old systems
This is intended to prevent issues like
@@ -111,6 +111,10 @@ General usage looks like this:
You can also call with ``python -m aqt`` syntax as well as command script ``aqt``.
+Many older Linux distributions symlink ``python`` to the older Python 2.7, which is incompatible with ``aqt``.
+If you are using such a system, please check your Python 3 version with ``python3 --version``,
+and run ``aqt`` using ``python3 -m aqt``.
+
* The Qt version is formatted like this: `5.11.3`
* Host is one of: `linux`, `mac`, `windows`
* Target is one of: `desktop`, `android`, `ios` (iOS only works with mac host)
