Fix shebang for contrib scripts

contrib/daemontools/run

@@ -1,3 +1,3 @@
-j#!/bin/sh
+#!/bin/sh
 echo "Launching ElectrumX server..."
 exec 2>&1 envdir ./env /bin/sh -c 'envuidgid $USERNAME python3 $ELECTRUMX'

contrib/python3.6/python-3.6.sh

@@ -1,5 +1,7 @@
-Installation of Python 3.6
+#!/bin/sh
---------------------------
+###########################
+#Installation of Python 3.6
+###########################
 
 sudo add-apt-repository ppa:jonathonf/python-3.6
 sudo apt-get update && sudo apt-get install python3.6 python3.6-dev

contrib/raspberrypi3/install_electrumx.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 ###################
 # install electrumx
 ###################

contrib/raspberrypi3/run_electrumx.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 ###############
 # run_electrumx
 ###############