GDScript basics: expand upon continue explanation (#6650)

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

tutorials/scripting/gdscript/gdscript_basics.rst

@@ -1082,7 +1082,8 @@ while
 ^^^^^
 
 Simple loops are created by using ``while`` syntax. Loops can be broken
-using ``break`` or continued using ``continue``:
+using ``break`` or continued using ``continue`` (which skips to the next
+iteration of the loop without executing any further code in the current iteration):
 
 ::