Finalise removal of plotlib::repr::Line

Author: milliams

src/grid.rs

@@ -20,7 +20,7 @@
 //!
 //! # let l1 = plotlib::repr::Plot::new(vec![(0., 1.), (2., 1.5), (3., 1.2), (4., 1.1)])
 //! #    .line_style(LineStyle::new().colour("burlywood"));
-//! // let l1 = Line::new() ...
+//! // let l1 = Plot::new() ...
 //! let mut v = ContinuousView::new().add(l1);
 //!
 //! // 3 vertical lines and 8 horizontal lines

src/lib.rs

@@ -9,10 +9,8 @@ plotlib is a data plotting and rendering library.
 There are five different types of plot currently supported:
 
 1. Box plot (`plotlib::repr::Box`)
-1. Function (`plotlib::repr::Function`)
 1. Histogram (`plotlib::repr::Histogram`)
-1. Line chart (`plotlib::repr::Line`)
-1. Scatter plot (`plotlib::repr::Scatter`)
+1. Line and scatter plot (`plotlib::repr::Plot`)
 
 ## Technical