Further explanation of ``continue``. (#6642)

* Further explanation of ``continue``.

I find this remark quite useful for beginner programmers unused to loops.

Co-authored-by: Max Hilbrunner <[email protected]>

tutorials/scripting/gdscript/gdscript_basics.rst

@@ -877,7 +877,7 @@ 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`` (i.e. skipping to the next iteration of the loop without executing any further code in the current iteration):
 
 ::