add easy to use startup script

start-venv.sh

@@ -0,0 +1,8 @@
+#! /usr/bin/env bash
+
+if [ ! -f venv/bin/activate ] ; then
+    python3 -m venv venv
+fi
+source venv/bin/activate
+python3 -m pip install -r requirements.txt
+python3 zeronet.py