Renames CHANGELOG.md to .gmi and adapts content

CHANGELOG.gmi

@@ -0,0 +1,17 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https:/​/keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https:/​/semver.org/spec/v2.0.0.html).
+
+## [1.0.0] - 2021-03-10
+* Improves presentation and installation page.
+* Adds stylesheets and download of pages source code.
+* Allows to change stylesheet in the URL.
+* Tested successfully on a shared host.
+
+## [0.2.0] - 2021-03-06
+Beta version
+
+## [0.1.0] - 2021-03-01
+Alpha version

CHANGELOG.md

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-# Changelog
-All notable changes to this project will be documented in this file.
-
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-
-## [Unreleased]
-Security
-- Check url encoding: The filename fetched on disk may differ from that was asked by URL.
-- Perform sanity checks against unauthorized access.
-- Check unicode capability, UTF16 input, etc…
-- Manage different type of carriage return: CR CR/LF LF
-
-Development
-- Command line API for script, testing, CI…
-
-User interface
-- Page menu on upper and lower sides: [parent dir] [root dir] [raw text]
-- Images
-- Text localisation
-
-## [1.0.0] - 2021-03-10
-- Improves presentation and installation page.
-- Adds stylesheets and download of pages source code.
-- Allows to change stylesheet in the URL.
-- Tested successfully on a shared host.
-
-## [0.2.0] - 2021-03-06 
-Beta version
-
-## [0.1.0] - 2021-03-01
-Alpha version