small updates

UnityPerformanceBenchmarkReporter/OptionsParser.cs

@@ -43,7 +43,7 @@ namespace UnityPerformanceBenchmarkReporter
 
                 if (!performanceBenchmark.ResultXmlFilePaths.Any() && !performanceBenchmark.ResultXmlDirectoryPaths.Any())
                 {
-                    ShowHelp("Missing required option --testresultsxmlsource=(filePath|directoryPath)", os);
+                    ShowHelp("Missing required option --results=(filePath|directoryPath)", os);
                 }
 
                 if (remaining.Any())

UnityPerformanceBenchmarkReporter/Report/styles.css

@@ -423,6 +423,7 @@ pre {
     width: 99%;
     height: 18vh;
     font-family: 'Arial', 'Helvetica', 'Helvetica Neue', sans-serif;
+    min-height: 200px;
 }
 
 .divider {