adjust download Scala 3 page

Author: bishabosha

_includes/downloads-scala3.html

@@ -61,15 +61,16 @@ <h3>Then, prepare your environment</h3>
       <h3>Then, install Scala 3</h3>
       <p>Open a terminal and run the following commands:</p>
       <p><code>cs install scala3-compiler</code><span>to install the Scala 3 compiler.</span></p>
-      <p><code>cs install scala3-repl</code><span>to install the Scala 3 interactive read-eval-print loop.</span></p>
+      <p><code>cs install scala3</code><span>to install the Scala 3 code runner</span></p>
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     <div class="number-step">3</div>
     <div class="text-step">
       <h3>Use Scala 3</h3>
-      <p>The command <code>scala3-repl</code> will start a Scala console that you can use to interactively evaluate Scala programs. Within this console, run the command <code>:load test.scala</code> to load and execute the file <code>test.scala</code>.</p>
-      <p>To use the Scala 3 compiler to compile a file <code>test.scala</code> simply run<code>scala3-compiler test.scala</code> in your terminal.</p>
+      <p>The command <code>scala3</code> will start the Scala console, it is an interactive read-eval-print-loop that you can use to directly enter and run Scala expressions.</p>
+      <p>To use the Scala 3 compiler to compile a file <code>test.scala</code>, run<code>scala3-compiler test.scala</code> in your terminal.</p>
+      <p>The command <code>scala3 hello Scala</code> will run the main method of a class called <code>hello</code>, passing the argument <code>"Scala"</code>.</p>
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