Update reset method docs

Author: marat

Doc/library/turtle.rst

@@ -1397,12 +1397,11 @@ More drawing control
 .. function:: reset()
 
    Delete the turtle's drawings from the screen. Move the turtle
-   to position ``(0, 0)``, set its heading to the default
-   (facing east in standard mode) and restore the following state
-   variables to their initial values:
+   to position ``(0, 0)``, set its heading 0 and restore the
+   following state variables to their initial values:
 
    * position: ``(0, 0)``
-   * heading: ``0`` (east)
+   * heading: ``0`` (east if standard or world mode, north if logo mode)
    * pen state: down (drawing)
    * pensize: ``1``
    * pencolor: black
@@ -2647,7 +2646,7 @@ facilities:
          "orange"
          >>> screen.bgcolor(0.5,0,0.5)
          >>> screen.bgcolor()
-         "#800080"
+         "rgba(128, 0, 128, 1)"
 
      >>> help(Turtle.penup)
      Help on method penup in module turtle:

Lib/turtle.py

@@ -2646,12 +2646,11 @@ def reset(self):
         No argument.
 
         Delete the turtle's drawings from the screen. Move the turtle
-        to position `(0, 0)`, set its heading to the default
-        (facing east in standard mode) and restore the following state
-        variables to their initial values:
+        to position `(0, 0)`, set its heading to 0 and restore
+        the following state variables to their initial values:
 
         - position: `(0, 0)`
-        - heading: `0` (east)
+        - heading: `0` (east if standard or world mode, north if logo mode)
         - pen state: down (drawing)
         - pensize: `1`
         - pencolor: black