Incorporate the changes done for the release 0.2.0

It mainly incorporates modifications of the README.md and CHANGELOG.md
files.

CHANGELOG.md

@@ -2,7 +2,28 @@
 All notable changes to this project will be documented in this file. This
 project adheres to [Semantic Versioning].
 
-# [Unreleased]
+## [0.2.0] - 2019-03-09
+
+### Added
+
+- Add support for 256-colors terminal.
+
+  + If 8-bits colors are required, the following must be used in `.vimrc`:
+
+    ```vim
+    set termguicolors
+    colorscheme odyssey
+    ```
+
+  + If 24-bits colors are required, the following must be used `.vimrc`:
+
+    ```vim
+    set t_Co=256
+    colorscheme odyssey
+    ```
+
+- Add the highlight for the default syntax group names Cursor and lCursor.
+  Those are basically the opposite of Normal.
 
 ### Changed
 
@@ -13,9 +34,9 @@ project adheres to [Semantic Versioning].
   The violet color is removed, and the yellow-green color is added.
 
   |    Color    |    Name    |     Main usage    | Hue | Saturation | Value |
-  | ------- | ---------------- | ----------------- | --- | ---------- | ----- |
-  | #8ab362 |    yellow-green  |          Constant | 110 |     45     |   70  |
-  | #6270b3 |       ~~violet~~ |          Constant | 230 |     45     |   70  |
+  | ----------- | ---------- | ----------------- | --- | ---------- | ----- |
+  |     #add590 |     yellow |          Constant |  95 |     45     |   70  |
+  | ~~#6270b3~~ | ~~violet~~ |          Constant | 230 |     45     |   70  |
 
 - The highlight for MatchParen has been modified. In fact, when the cursor is
   over a parenthese, a bracket, a brace, and so on, the matching element turns
@@ -63,5 +84,6 @@ project adheres to [Semantic Versioning].
 
   + Otherwise, a GUI version of Vim must be used.
 
-[Unreleased]: https://github.com/ludokng/vim-odyssey/compare/0.1.0...HEAD
+[Unreleased]: https://github.com/ludokng/vim-odyssey/compare/0.2.0...HEAD
+[0.2.0]: https://github.com/ludokng/vim-odyssey/compare/0.1.0...0.2.0
 [Semantic Versioning]: https://semver.org/spec/v2.0.0.html

README.md

@@ -27,8 +27,26 @@ After having installed [pathogen.vim], clone the repository under
 ### Updating the `./vimrc`
 
 Add the following to the `./vimrc` file.
+
+  + For GUI versions of Vim:
+
     ```vim
-  set termguicolor
+    colorscheme odyssey
+    ```
+
+  + For terminals that support true color, if 24-bits colors are required, the
+    following lines must be used:
+
+    ```vim
+    set termguicolors
+    colorscheme odyssey
+    ```
+
+  + For terminals that support 256-colors, if 8-bits colors are required, the
+    following lines must be used:
+
+    ```vim
+    set t_Co=256
     colorscheme odyssey
     ```
 

colors/odyssey.vim

@@ -14,7 +14,7 @@
 "
 " Maintainer: Ludovic Koenig <ludovic.koenig@gmail.com>
 " License: MIT
-" Release: 0.1.0
+" Release: 0.2.0
 " Initialisation {{{
 
 if !has('gui_running')
@@ -139,7 +139,7 @@ let s:colors.error      = s:colorize(  0, 45, 70)
 let s:colors.warning    = s:colorize( 30, 45, 70)
 let s:colors.procedure  = s:colorize(140, 45, 70)
 let s:colors.type       = s:colorize(200, 45, 70)
-let s:colors.constant   = s:colorize(110, 45, 70)
+let s:colors.constant   = s:colorize( 95, 45, 70)
 
 " }}}
 " Highlight Utilities {{{