Merge branch 'feature-quick-start-scala-3-fix' of https://github.com/scalatest/scalatest-website

Author: cheeseng

app/views/index.scala.html

@@ -75,7 +75,8 @@
 
 <pre class="scala">
 $ CLASSPATH=scalatest-app_@{majorMinorScalaVersion}-@{latestVersion}.jar:scala-xml_@{majorMinorScalaVersion}-2.1.0.jar
-$ scala -cp $CLASSPATH org.scalatest.run ExampleSpec
+$ scalac -cp $CLASSPATH ExampleSpec.scala    
+$ scala -cp $CLASSPATH --main-class org.scalatest.run -- ExampleSpec
 <span class="cyanincolor">Discovery starting.
 Discovery completed in 21 milliseconds.
 Run starting. Expected test count is: 2</span>

app/views/userGuide/usingTheRunner.scala.html

@@ -34,7 +34,7 @@ <h1>Using the Runner</h1>
 
 <p><pre class="stExamples">
 $ CLASSPATH=scalatest-app_@{majorMinorScalaVersion}-@{latestVersion}.jar:scala-xml_3-2.1.0.jar
-$ scala -cp $CLASSPATH org.scalatest.tools.Runner [arguments]
+$ scala -cp $CLASSPATH --main-class org.scalatest.tools.Runner -- [arguments]
 </pre></p>
 
 <p>The arguments <code>Runner</code> accepts are described in the following table:</p>