added Warning options to the list of scala3 compiler options

_overviews/scala3-migration/options-new.md

@@ -40,6 +40,21 @@ The current page only contains the options that were added in Scala 3.0.x.
 | `-Vprofile-sorted-by:<column-name>` | Show metrics about sources and internal representations sorted by given column name. |
 | `-Vprofile-details N` | Like -Vprofile, but also show metrics about sources and internal representations of the N most complex methods |
 
+## Warning settings
+
+| 3.3.x | description |
+|-|-|
+| `-Wunused:imports` | Warn about unused imports |
+| `-Wunused:privates` | Warn about unused private definitions |
+| `-Wunused:locals` | Warn about unused local definitions |
+| `-Wunused:explicits` | Warn about unused explicit parameters |
+| `-Wunused:implicits` | Warn about unused implicit parameters |
+| `-Wunused:params`    | Warn about all unused parameters |
+| `-Wunused:all`       | Enable all warnings |
+| `-Wvalue-discard`    | Warn about discarding values |
+| `-Wnonunit-statement` |  Warn when block statements are non-Unit expressions (added in 3.3.1) |
+
+
 ## Advanced settings
 
 | 3.0.x | description |