Update pygmt/params/position.py [skip ci]

Co-authored-by: Yvonne Fröhlich <94163266+yvonnefroehlich@users.noreply.github.com>

Author: seisman

pygmt/params/position.py

@@ -76,8 +76,7 @@ class Position(BaseParam):
         opposite of the *reference point*. Useful for placing embellishments outside
         the plot boundaries (e.g., color bars).
 
-        **Example:** ``refpoint="TL", type="outside"`` [anchor point defaults to
-        ``"BR"``]
+        **Example:** ``refpoint="TL", type="outside"``
 
     **Anchor Point**