More information about changed scala CLI syntax.

Signed-off-by: Dean Wampler <[email protected]>

Author: deanwampler

README.md

@@ -15,6 +15,22 @@ The `master` branch and the `3.X.Y` tag releases are for the third edition. The
 
 > [!WARNING]
 > Scala 3 is evolving, as are the tools that support it. I try to keep the `main` branch up to date with the latest versions, including changing the examples as required to handle new and changed features (see, e.g., [issue #131](https://github.com/deanwampler/programming-scala-book-code-examples/issues/131)). Hence, sometimes an example (or how to run it) will be different from what you see in the book. So, if you are reading the book and want the examples exactly as they appear there, with the same tool versions used at that time, then grab the [`3.0.0-final`](https://github.com/deanwampler/programming-scala-book-code-examples/tree/3.0.0-final) release. 
+>
+> In particular, running a scala program on the command line has changed as of 3.5.0. So, for example, on page 18 of the book, change this command for running a program at the shell prompt:
+>
+> `$ scala -cp . -M progscala3.introscala.UpperMain1 hello computed world!`
+>
+> to this:
+>
+> `$ scala -cp . -M progscala3.introscala.UpperMain1 -- hello computed world!`
+>
+> Note the required `--` to separate `scala` arguments from your programs arguments. Use this change for all subsequent examples in the book that use the `scala` command to run code.
+>
+> It appears that `sbt` syntax has **not** changed when using `runMain` at the SBT prompt:
+>
+> `> runMain progscala3.introscala.UpperMain1 hello computed world!`
+>
+> Use of `sbt` is discussed further below.
 
 > [!TIP]
 > Several sections offer troubleshooting tips if you encounter problems.
@@ -24,7 +40,7 @@ The `master` branch and the `3.X.Y` tag releases are for the third edition. The
 In the book's text, when an example corresponds to a file in this distribution, the listing begins with a path in a comment with the following format:
 
 ```scala
-// src/main/scala/progscala3/.../FooBar.scala
+// src/main/scala/progscala3.introscala.UpperMain1
 ```
 
 Following the usual conventions, tests are in `src/test/...`.