#12677: correct turtle orientation in doc

Doc/library/turtle.rst

@@ -18,10 +18,10 @@ Turtle graphics is a popular way for introducing programming to kids.  It was
 part of the original Logo programming language developed by Wally Feurzig and
 Seymour Papert in 1966.
 
-Imagine a robotic turtle starting at (0, 0) in the x-y plane.  Give it the
+Imagine a robotic turtle starting at (0, 0) in the x-y plane.  After an ``import turtle``, give it the
 command ``turtle.forward(15)``, and it moves (on-screen!) 15 pixels in the
 direction it is facing, drawing a line as it moves.  Give it the command
-``turtle.left(25)``, and it rotates in-place 25 degrees clockwise.
+``turtle.right(25)``, and it rotates in-place 25 degrees clockwise.
 
 .. sidebar:: Turtle star
 

Lib/turtle.py

@@ -27,10 +27,10 @@ Turtle graphics is a popular way for introducing programming to
 kids. It was part of the original Logo programming language developed
 by Wally Feurzig and Seymour Papert in 1966.
 
-Imagine a robotic turtle starting at (0, 0) in the x-y plane. Give it
+Imagine a robotic turtle starting at (0, 0) in the x-y plane. After an ``import turtle``, give it
 the command turtle.forward(15), and it moves (on-screen!) 15 pixels in
 the direction it is facing, drawing a line as it moves. Give it the
-command turtle.left(25), and it rotates in-place 25 degrees clockwise.
+command turtle.right(25), and it rotates in-place 25 degrees clockwise.
 
 By combining together these and similar commands, intricate shapes and
 pictures can easily be drawn.

Lib/turtledemo/about_turtle.txt

@@ -7,10 +7,10 @@ Turtle graphics is a popular way for introducing programming to
 kids. It was part of the original Logo programming language developed
 by Wally Feurzig and Seymour Papert in 1966.
 
-Imagine a robotic turtle starting at (0, 0) in the x-y plane. Give it
+Imagine a robotic turtle starting at (0, 0) in the x-y plane. After an ``import turtle``, give it
 the command turtle.forward(15), and it moves (on-screen!) 15 pixels in
 the direction it is facing, drawing a line as it moves. Give it the
-command turtle.left(25), and it rotates in-place 25 degrees clockwise.
+command turtle.right(25), and it rotates in-place 25 degrees clockwise.
 
 By combining together these and similar commands, intricate shapes and
 pictures can easily be drawn.