Add documentation and build instructions

1 files changed, 49 insertions, 6 deletions

diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,10 +1,53 @@
-# Ayatana Keyboard Indicator
+# Ayatana System Indicator — Keyboard [![Build Status](https://travis-ci.com/AyatanaIndicators/ayatana-indicator-keyboard.svg)](https://travis-ci.com/AyatanaIndicators/ayatana-indicator-keyboard)
 
-### Themed icons
+## About Ayatana Indicators
 
-To generate icons for a theme, you can use the icon generator in the data
-directory. Run it with the -h switch for help on usage.
+The Ayatana Indicators project is the continuation of Application
+Indicators and System Indicators, two technologies developed by Canonical
+Ltd. for the Unity7 desktop.
 
-### TODO
+Application Indicators are a GTK implementation of the StatusNotifierItem
+Specification (SNI) that was originally submitted to freedesktop.org by
+KDE.
 
-- Drop utils and use libayatana-common
+System Indicators are an extensions to the Application Indicators idea.
+System Indicators allow for far more widgets to be displayed in the
+indicator's menu.
+
+The Ayatana Indicators project is the new upstream for application
+indicators, system indicators and associated projects with a focus on
+making Ayatana Indicators a desktop agnostic technology.
+
+On GNU/Linux, Ayatana Indicators are currently available for desktop
+envinronments like MATE (used by default in [Ubuntu
+MATE](https://ubuntu-mate.com)), XFCE (used by default in
+[Xubuntu](https://bluesabre.org/2021/02/25/xubuntu-21-04-progress-update/),
+LXDE, and the Budgie Desktop).
+
+The Lomiri Operating Environment (UI of the Ubuntu Touch OS, formerly
+known as Unity8) uses Ayatana Indicators for rendering its notification
+area and the [UBports](https://ubports.com) project is a core contributor
+to the Ayatana Indicators project.
+
+For further info, please visit:
+https://ayatana-indicators.org
+
+
+## The Keyboard Ayatana System Indicator
+
+The -keyboard Ayatana System Indicator is the keyboard menu indicator for
+Unity7, MATE and Lomiri (optionally for others, e.g. XFCE, LXDE). Its
+behavior and features are listed at
+https://wiki.ayatana-indicators.org/AyatanaIndicatorKeyboard
+
+## Themed icons
+
+To generate icons for a theme, you can use the icon generator in the data directory. Run it with the -h switch for help on usage.
+
+## License and Copyright
+
+See COPYING and AUTHORS file in this project.
+
+## Building and Testing
+
+For instructions on building and running built-in tests, see the INSTALL.md file.