Update Doc/library/turtle.rst

Co-authored-by: Hugo van Kemenade <[email protected]>

Author: evildmp

Doc/library/turtle.rst

@@ -27,7 +27,7 @@ in 1967.
 In Python, turtle graphics provides a representation of a physical "turtle"
 (a little robot with a pen) that draws on a sheet of paper on the floor.
 
-It's a very effective and well-proven way for learners to encounter
+It's an effective and well-proven way for learners to encounter
 programming concepts and interaction with software, as it provides instant,
 visible feedback. It also provides convenient access to graphical output
 in general.