HelpText Correction (#516)

* Correct HelpText with examples with work

* revert unintended change

Author: rhotchkiss

src/ExchangeSharpConsole/Options/ExportOption.cs

@@ -13,7 +13,7 @@ namespace ExchangeSharpConsole.Options
 		"This can take a long time depending on your sinceDateTime parameter.\n" +
 		"Please note that not all exchanges will let you do this and may ban your IP if you try to grab to much data at once. " +
 		"I've added sensible sleep statements to limit request rates.\n" +
-		"Example: export -e gemini --since 20150101 -s btcusd -o \"./data/gemini\"")]
+		"Example: export -e gemini --since 2015-01-01 -s btcusd -p \"./data/gemini\"")]
 	public class ExportOption : BaseOption, IOptionPerExchange, IOptionPerMarketSymbol, IOptionWithIO,
 		IOptionWithStartDate
 	{

src/ExchangeSharpConsole/Options/TradeHistoryOption.cs

@@ -8,7 +8,7 @@
 namespace ExchangeSharpConsole.Options
 {
 	[Verb("trade-history", HelpText = "Print trade history from an Exchange to output.\n" +
-	                                  "Example: trade-history -e Binance -s btcusdt --since \"20180517\" --to \"20180518\"")]
+	                                  "Example: trade-history -e Binance -s btcusdt --since \"2018-05-17\" --to \"2018-05-18\"")]
 	public class TradeHistoryOption : BaseOption, IOptionPerExchange, IOptionPerMarketSymbol, IOptionWithStartDate,
 		IOptionWithEndDate
 	{