add info about adding cases to switch statement (#387)

* add info about adding cases to switch statement

* fix: formatting

---------

Co-authored-by: Whipstickgostop <[email protected]>

Author: FajitaOfTreason

streamerbot/3.api/1.sub-actions/core/logic/switch.md

@@ -20,3 +20,16 @@ parameters:
       - `0`{lang=cs} can be auto-typed to a numeric type such as `int`{lang=cs} or `long`{lang=cs}
       - `true`{lang=cs} or `false`{lang=cs} can be auto-typed to a `bool`{lang=cs}
 ---
+
+You can add any number of cases to a switch by right clicking on the `switch` Sub-Action and selecting "Add Case"
+
+![Switch Sub-Action context menu showing "Add Case" option](assets/switch-add-case-context-menu.png)
+
+You can add one or more values to a case.  If any of the case's values match the `switch` input, that case will be executed.
+
+![Add Case Dialogue](assets/switch-add-case-dialogue.png)
+
+::note
+Only the first matching case will be executed.
+- If no cases match, the `default` case will be executed.
+::