Update documentations

README.md

@@ -1,73 +1,20 @@
 # Atlas
-![App window in the light mode](data/screenshots/screenshot-light.png#gh-light-mode-only)
+![Screenshot in the light mode](data/screenshots/screenshot-light.png#gh-light-mode-only)
 
-![App window in the dark mode](data/screenshots/screenshot-dark.png#gh-dark-mode-only)
+![Screenshot in the dark mode](data/screenshots/screenshot-dark.png#gh-dark-mode-only)
 
-Atlas is a map viewer designed for elementary OS.
-
-Features include:
-
-- Search any place
-- Jump to your current location instantly
-
-## Installation
-### From AppCenter (Recommended)
-Click the button to get Atlas on AppCenter if you're on elementary OS:
-
-[![Get it on AppCenter](https://appcenter.elementary.io/badge.svg)](https://appcenter.elementary.io/com.github.ryonakano.atlas)
-
-### From Source Code (Flatpak)
-You'll need `flatpak` and `flatpak-builder` commands installed on your system.
-
-Run `flatpak remote-add` to add AppCenter remote for dependencies:
-
-```
-flatpak remote-add --user --if-not-exists appcenter https://flatpak.elementary.io/repo.flatpakrepo
-```
-
-To build and install, use `flatpak-builder`, then execute with `flatpak run`:
-
-```
-flatpak-builder builddir --user --install --force-clean --install-deps-from=appcenter com.github.ryonakano.atlas.yml
-flatpak run com.github.ryonakano.atlas
-```
-
-### From Source Code (Native)
-You'll need the following dependencies:
-
-* libadwaita-1-dev
-* libgeoclue-2-dev
-* libgeocode-glib-dev (>= 3.26.3)
-* libglib2.0-dev (>= 2.74)
-* libgranite-7-dev (>= 7.3.0)
-* libgtk-4-dev
-* libshumate-dev
-* meson (>= 0.57.0)
-* valac
-
-Run `meson setup` to configure the build environment and run `meson compile` to build:
+## Building, Testing, and Installation
+Run `flatpak-builder` to configure the build environment, download dependencies, build, and install
 
 ```bash
-meson setup builddir --prefix=/usr
-meson compile -C builddir
+    flatpak-builder build com.github.ryonakano.atlas.yml --user --install --force-clean --install-deps-from=appcenter
 ```
 
-To install, use `meson install`, then execute with `com.github.ryonakano.atlas`:
+Then execute with
 
 ```bash
-meson install -C builddir
-com.github.ryonakano.atlas
+    flatpak run com.github.ryonakano.atlas
 ```
 
-## Contributing
-Please refer to [the contribution guideline](CONTRIBUTING.md) if you would like to:
-
-- submit bug reports / feature requests
-- propose coding changes
-- translate the project
-
-## Get Support
-Need help in use of the app? Refer to [the discussions page](https://github.com/ryonakano/atlas/discussions) to search for existing discussions or [start a new discussion](https://github.com/ryonakano/atlas/discussions/new/choose) if none is relevant.
-
 ## History
 This is a fork of [Atlas Maps](https://launchpad.net/atlas-maps) and wouldn't exist without work of [Steffen Schuhmann](https://launchpad.net/~sschuhmann).