change doc to recommend metals worksheet

docs/docs/usage/worksheet-mode.md

@@ -1,21 +1,22 @@
 ---
 layout: doc-page
-title: "Worksheet mode with Dotty IDE"
+title: "Worksheet mode with Metals"
 ---
 
-A worksheet is a Scala file that is evaluated on save, and the result of each
-expression is shown in a column to the right of your program. Worksheets are
+A worksheet is a Scala file that is evaluated on save, powered
+by [Scala Metals](https://scalameta.org/metals/), and the result of each
+expression is shown at the end of the line it is defined on. Worksheets are
 like a REPL session on steroids, and enjoy 1st class editor support: completion,
 hyperlinking, interactive errors-as-you-type, etc. Worksheet use the extension
-`.sc`.
+`.worksheet.sc`.
 
 How to use the worksheets
 =========================
 The only supported client for the Worksheet mode is [Visual Studio
 Code](https://code.visualstudio.com/).
 
-To use the worksheets, start Dotty IDE by [following the
-instruction](ide-support.md) and create a new file `MyWorksheet.sc` and
+To use the worksheets, start Metals by [following the
+instruction](ide-support.md) and create a new file `MyWorksheet.worksheet.sc` and
 write some code:
 
 ```scala
@@ -24,27 +25,20 @@ println("Hello, worksheets!")
 456 + xyz
 ```
 
-On top of the buffer, the message `Run this worksheet` appears. Click it to
-evaluate the code of the worksheet. Each line of output is printed on the right
+On top of the buffer, the message `Copy Worksheet Output` appears. Save the file to evaluate the code of the worksheet. Each line of output is printed on the right
 of the expression that produced it. The worksheets run with the classes of your
 project and its dependencies on their classpath.
 
 ![](images/worksheets/worksheet-run.png "Run worksheet")
 
-By default, the worksheets are also run when the file is saved. This can be
-configured in VSCode preferences:
-
-![](images/worksheets/config-autorun.png "Configure run on save")
-
-Note that the worksheet are fully integrated with the rest of Dotty IDE: While
-typing, errors are shown, completions are suggested, and you can use all the
-other features of Dotty IDE such as go to definition, find all references, etc.
+Note that the worksheet are fully integrated with the rest of Metals:
+When you type, completions are suggested, and when you save errors are shown.
+You can use all the other features of Metals such as go to definition,
+find all references, etc.
 
 ![](images/worksheets/worksheet-help.png "IDE features in the worksheet")
 
-Implementation details
+More Information
 ======================
 
-The implementation details of the worksheet mode and the information necessary to add support for
-other clients are available in [Worksheet mode - Implementation
-details](worksheet-mode-implementation-details.md).
+find out more in the [Metals Documentation](https://scalameta.org/metals/docs/editors/vscode.html#worksheets).