Move help from Comment-based to md. Relocate functions (sans help)

ExportedCommands/Export-StocksToExcel.ps1

@@ -0,0 +1,28 @@
+function Export-StocksToExcel {
+    param(
+        [string]$symbols,
+        [ValidateSet("Open", "High", "Low", "Close", "Volume")]
+        $measure = "Open"
+    )
+
+    $xl = Join-Path ([IO.Path]::GetTempPath()) 'Stocks.xlsx'
+
+    Remove-Item $xl -ErrorAction SilentlyContinue
+
+    $r = Invoke-RestMethod "https://azfnstockdata-fn83fffd32.azurewebsites.net/api/GetQuoteChart?symbol=$($symbols)"
+
+    $chartColumn = $symbols.Split(',').count + 2
+    $ptd = New-PivotTableDefinition `
+        -SourceWorkSheet Sheet1 `
+        -PivotTableName result `
+        -PivotData @{$measure = 'sum'} `
+        -PivotRows date `
+        -PivotColumns symbol `
+        -ChartType Line `
+        -ChartTitle "Stock - $measure " `
+        -IncludePivotChart -NoTotalsInPivot -ChartColumn $chartColumn -ChartRow 3 -Activate
+
+    $r | Sort-Object Date, symbol | Export-Excel $xl -PivotTableDefinition $ptd -AutoSize -AutoFilter -Show
+}
+
+# Export-StocksToExcel -symbols 'ibm,aapl,msft' -measure High