diff --git a/.gitignore b/.gitignore
index ca21d50..53da71a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,5 +8,6 @@
 
 *.vsix
 .vscode/
+doc/version.texi
 node_modules/
 out/
diff --git a/.vscodeignore b/.vscodeignore
index dcf887b..006294a 100644
--- a/.vscodeignore
+++ b/.vscodeignore
@@ -14,6 +14,7 @@
 .gitattributes
 .travis.yml
 .vscode/
+doc/
 LICENSE_NOTICE.md
 node_modules/
 src/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ec28c1..3988a22 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,13 @@ this notice are preserved. This file is offered as-is, without any warranty.
 
 # Changelog
 
+## v0.2.0 - 03/31/2021
+
+* Add a status bar item showing the current installation status of GNU Texinfo.
+* Add user manual.
+* Minor refactor of source code.
+* Change license from MIT to GPL-3.0-or-later.
+
 ## v0.1.4 - 02/23/2021
 
 * Support loading custom CSS for HTML preview.
diff --git a/doc/vscode-texinfo.texi b/doc/vscode-texinfo.texi
new file mode 100644
index 0000000..50e1383
--- /dev/null
+++ b/doc/vscode-texinfo.texi
@@ -0,0 +1,75 @@
+\input texinfo  @c -*-texinfo-*-
+
+@c %**start of header
+@setfilename vscode-texinfo.info
+@include version.texi
+@settitle vscode-texinfo v@value{VERSION} User Manual
+@c %**end of header
+
+@copying
+This manual is for vscode-texinfo, an extension of Visual Studio Code.
+
+Copyright @copyright{} 2021  CismonX <admin@@cismon.net>
+
+@quotation
+Copying and distribution of this file, with or without modification, are
+permitted in any medium without royalty, provided the copyright notice and
+this notice are preserved. This file is offered as-is, without any warranty.
+@end quotation
+@end copying
+
+@titlepage
+@title vscode-texinfo
+@subtitle Texinfo Support for Visual Studio Code, version @value{VERSION}
+@author CismonX
+
+@page
+@vskip 0pt plus 1filll
+@insertcopying
+
+@end titlepage
+
+
+@summarycontents
+@contents
+
+@ifnottex
+@node Top
+@top vscode-texinfo
+
+This manual is for vscode-texinfo, an extension of Visual Studio Code.
+
+Copyright @copyright{} 2021  CismonX <admin@@cismon.net>
+
+Copying and distribution of this file, with or without modification, are
+permitted in any medium without royalty, provided the copyright notice and
+this notice are preserved. This file is offered as-is, without any warranty.
+
+@end ifnottex
+
+
+@menu
+* Overview::        Brief overview of vscode-texinfo.
+* Installation::    Install vscode-texinfo.
+* Basic Usage::     Basic features of vscode-texinfo.
+* Advanced Usage::  Advanced features of vscode-texinfo.
+@end menu
+
+
+@node Overview
+@chapter Overview
+
+
+@node Installation
+@chapter Installation
+
+
+@node Basic Usage
+@chapter Basic Usage
+
+
+@node Advanced Usage
+@chapter Advanced Usage
+
+
+@bye
diff --git a/scripts/prepare.sh b/scripts/prepare.sh
index 6d1cc45..7b6e215 100755
--- a/scripts/prepare.sh
+++ b/scripts/prepare.sh
@@ -12,3 +12,6 @@ DEST_PATH=./out/grammars
 mkdir -p $DEST_PATH
 # Convert TextMate grammar from CSON to JSON, as VSCode cannot recognize CSON ones.
 cson2json $SRC_PATH/grammars/texinfo.cson | json -j0 > $DEST_PATH/texinfo.json
+
+VERSION=$(json -f package.json version)
+echo "@set VERSION $VERSION" > ./doc/version.texi