README: moved changelog entries to CHANGELOG.md

Author: azizk

README.md

@@ -1,44 +1,8 @@
 # elixir-sublime-syntax
 
-Elixir Sublime Syntax based on [Elixir Package](https://github.com/elixir-editors/elixir-tmbundle)
-with better highlighting and syntax parsing
+Elixir Sublime Syntax was based on the [Elixir.tmbundle package](https://github.com/elixir-editors/elixir-tmbundle) but has been rewritten since, providing more accurate syntax matching as well as better syntax highlighting.
 
-
-#### 2020-05-20
-
-Thanks @dkarter
-- Allow leex file to be picked up
-
-#### 2019-11-20
-
-Thanks to @azizk again
-- We now have regex syntax highlighting
-- EEx syntax highlighting now reuses html definition and interpolates Elixir parts into it
-- various fixes on general Elixir syntax definition
-- comprehensive sublime syntax tests
-
-#### 2019-03-22
-
-Thanks to @azizk
-- Also apply syntax to files with elixirc and iex in hashbang
-- Module names can only have ASCII letters, fixed regex to do that
-- Highlight module names as normal atoms when found in map/kwlist keys
-- Highlight unicode identifers for atoms, variables and function names
-
-#### 2019-02-13
-
-- Add Comment so we don't need https://github.com/elixir-editors/elixir-tmbundle alongside
-
-#### 2019-02-01
-
-- Fix binary `^^^` highlight
-- Highlight more operators
-
-#### 2017-12-13
-
-- Add HTML (EEX)
-
-#### Initially
+## First release
 
 - Transformed tm syntax into sublime syntax automatically
 - Refactored syntax definition into reusable blocks