(Commit Message) gold VS silver data plot file

goldVSsilver_plot.plt

+#!/bin/bash
+
+set terminal png
+set output 'goldVSsilver_plot.png'
+set datafile separator ","
+set xlabel 'time'
+set xdata time
+set timefmt '%Y-%m-%d %H%M%S'
+set format x '%Y-%m-%d %H:%M:%S'
+set ylabel 'price/$'
+set xrange ['2023-05-04 23:00:00':'2023-05-05 01:00:00']
+set yrange ['10':'2060.00']
+set xtics rotate
+set autoscale y
+set title 'Live gold and silver bid price in every 10 minutes'
+plot "goldbid.csv" u 2:1 t "goldbidprice" w linespoints,"silverbid.csv" u 2:1 t "silverbidprice" w linespoints