Document TextView optimizations

CHANGELOG

@@ -2,6 +2,7 @@ v1.5.1 (WIP)
 - Store TextView buffer as [][]byte instead of []string
 - Add TextView.SetBytes and TextView.GetBytes
 - Allow modification of scroll bar render text
+- Optimize TextView (writing is 90% faster, drawing is 50% faster)
 
 v1.5.0 (2020-10-03)
 - Add scroll bar to TextView

FORK.md

@@ -45,11 +45,19 @@ to enable background transparency.
 
 ## Tables are sorted when a fixed row is clicked by default
 
-Call [Table.SetSortClicked] to disable this behavior.
+Call [Table.SetSortClicked](https://docs.rocketnine.space/gitlab.com/tslocum/cview/#Table.SetSortClicked)
+to disable this behavior.
 
 ## Lists and Forms do not wrap around by default
 
-Call [List.SetWrapAround](https://docs.rocketnine.space/gitlab.com/tslocum/cview/#List.SetWrapAround) to wrap around when navigating.
+Call [List.SetWrapAround](https://docs.rocketnine.space/gitlab.com/tslocum/cview/#List.SetWrapAround)
+to wrap around when navigating.
+
+## TextViews store their text as []byte instead of string
+
+This greatly improves buffer efficiency. [TextView.Write](https://docs.rocketnine.space/gitlab.com/tslocum/cview/#TextView.Write)
+is 90% faster and [TextView.Draw](https://docs.rocketnine.space/gitlab.com/tslocum/cview/#TextView.Draw)
+is 50% faster.    
 
 # Merged pull requests