Make python3 explicit for non-Arch based systems (as if those even exist)

backend/templates/help/help_6.html.tera

@@ -18,9 +18,9 @@ How to connect
         <code>
 $ wget mozaic.zeus.gent/bot/runner.py
 $ wget mozaic.zeus.gent/bot/simple.py
-$ python runner.py -p 9142 --host mozaic.zeus.gent \
+$ python3 runner.py -p 9142 --host mozaic.zeus.gent \
     -n &lt;Your name&gt; -i &lt;Id from the lobby&gt; \
-    python simple.py
+    python3 simple.py
         </code>
     </pre>
 </div>

backend/templates/index2.html.tera

@@ -54,7 +54,7 @@
         <p>Build a bot! All information about the planetwars game, <a target="_blank" href="https://docs.google.com/presentation/d/1YXr7IsmEiBpRwgAoFPqsjFoKoyXOv9LAhPbsambGX70/edit?usp=sharing">please visit</a> for input output format etc. You can find an example bot <a href="bot/simple.py">here</a>.</p>
         <p>Optionally, you can create your own custom with the mapbuilder</p>
         <p>Start a game instance in the lobby, don't forget to name it, watching the visualization afterwars is the only way to know who won atm.</p>
-        <p>Start up your bot and connect to the game instance. In the lobby you will see keys corresponding to players in the game. You can use <a href="bot/runner.py">the botrunner</a> to run your bot, with the command <span style="font-style: italic;">python runner.py --host mozaic.zeus.gent -n {your name} -i {your key} {The command to start you bot}</span>.
+        <p>Start up your bot and connect to the game instance. In the lobby you will see keys corresponding to players in the game. You can use <a href="bot/runner.py">the botrunner</a> to run your bot, with the command <span style="font-style: italic;">python3 runner.py --host mozaic.zeus.gent -n {your name} -i {your key} {The command to start you bot}</span>.
         <p>Invite friends!</p>
         <p>Bash your friends because you have the superior bot, according to the visualizer</p>
     </div>

client/run.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 
 echo "Using token $1"
-python runner.py -n simple.py --host ${HOST:-localhost} -p 9142 -i $1 python simple.py
+python3 runner.py -n simple.py --host ${HOST:-localhost} -p 9142 -i $1 python3 simple.py

client/runner.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 import socket, sys, subprocess, argparse, io, threading, json