Remove mumble entries from the readme

src/freedombone-app-mumble

     function_check remove_onion_service
     remove_onion_service mumble ${MUMBLE_PORT}
     sed -i '/mumble/d' $COMPLETION_FILE
+    sed -i '/Mumble/d' /home/$MY_USERNAME/README
 }
 
 function get_mumble_server_password {
     if ! grep -q $"Mumble Server" /home/$MY_USERNAME/README; then
         echo '' >> /home/$MY_USERNAME/README
         echo '' >> /home/$MY_USERNAME/README
-        echo $'Mumble Server' >> /home/$MY_USERNAME/README
-        echo '=============' >> /home/$MY_USERNAME/README
+        echo $'# Mumble Server' >> /home/$MY_USERNAME/README
         echo $"Mumble onion domain:$MUMBLE_ONION_HOSTNAME" >> /home/$MY_USERNAME/README
         echo $'Mumble server username: mumble-server' >> /home/$MY_USERNAME/README
         echo $"Mumble server password: $MUMBLE_SERVER_PASSWORD" >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $'To connect to the Mumble server use your username and the server password shown above.' >> /home/$MY_USERNAME/README
         chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
         chmod 600 /home/$MY_USERNAME/README
     fi