[docs] add some installation instructions

nodes/start.sh

@@ -0,0 +1,3 @@
+#! /bin/bash
+source venv/bin/activate
+python main.py

nodes/wg-services.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+ACTION=$1
+
+case $ACTION in
+        enable)
+                systemctl enable "wg-quick@dn42_$2";
+                ;;
+
+        disable)
+                systemctl disable "wg-quick@dn42_$2"
+                ;;
+
+        start)
+                systemctl start "wg-quick@dn42_$2"
+                ;;
+
+        stop)
+                systemctl stop "wg-quick@dn42_$2"
+                ;;
+
+        *)
+                echo “User Selected Choice not present”
+                exit 1
+
+esac