docs: add GitHub and F-Droid download buttons

README.md

@@ -36,9 +36,25 @@ Levels 1–4 require only built-in n8n nodes. Import instructions include synthe
 
 ## Getting started
 
-**[Download the latest signed APK](https://github.com/andre487/AndroidMessage487/releases/latest/download/message487.apk)**
+<table>
+  <tr>
+    <th align="center">GitHub</th>
+    <th align="center">F-Droid</th>
+  </tr>
+  <tr>
+    <td align="center">
+      <a href="https://github.com/andre487/AndroidMessage487/releases/latest/download/message487.apk">
+        <img src="assets/branding/get-it-on-github.png" alt="Download APK from GitHub" height="75">
+      </a>
+    </td>
+    <td align="center">
+      <a href="https://f-droid.org/packages/life.andre.message487/">
+        <img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="75">
+      </a>
+    </td>
+  </tr>
+</table>
 
-Also available from [F-Droid](https://f-droid.org/packages/life.andre.message487/).
 Use **App updates** for updates; see the [installation guide](docs/en/apk-installation.md)
 for permissions, installer restrictions and update sources.
 

assets/branding/README.md

@@ -121,3 +121,16 @@ Screenshots in `fastlane/metadata/android/{en-US,ru-RU}/images/phoneScreenshots/
 1080×1920 captures from the API 35 debug emulator with synthetic data and app locales.
 Refresh them from the submitted release when UI changes; generated illustrations and the feature
 banner are not app screenshots. Follow [Google Play asset requirements](https://support.google.com/googleplay/android-developer/answer/9866151?hl=en).
+
+## Download badge
+
+[get-it-on-github.svg](get-it-on-github.svg) is the vector source for the GitHub download
+badge. It uses DejaVu Sans for “GET IT ON”, Roboto Slab Bold for “GitHub”, and the
+GitHub mark from Primer Octicons. Text is outlined so rendering requires no installed fonts.
+Third-party notices are in [get-it-on-github-NOTICES.txt](get-it-on-github-NOTICES.txt).
+
+Regenerate the PNG used in the README and installation guides:
+
+```sh
+rsvg-convert -w 1292 -h 500 assets/branding/get-it-on-github.svg -o assets/branding/get-it-on-github.png
+```

docs/en/apk-installation.md

@@ -2,6 +2,25 @@
 
 [English](../en/apk-installation.md) | [Русский](../ru/apk-installation.md)
 
+<table>
+  <tr>
+    <th align="center">GitHub</th>
+    <th align="center">F-Droid</th>
+  </tr>
+  <tr>
+    <td align="center">
+      <a href="https://github.com/andre487/AndroidMessage487/releases/latest/download/message487.apk">
+        <img src="../../assets/branding/get-it-on-github.png" alt="Download APK from GitHub" height="75">
+      </a>
+    </td>
+    <td align="center">
+      <a href="https://f-droid.org/packages/life.andre.message487/">
+        <img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="75">
+      </a>
+    </td>
+  </tr>
+</table>
+
 ## App updates
 
 Open **App updates** from the update icon in the top bar. F-Droid installers, including

docs/ru/apk-installation.md

@@ -2,6 +2,25 @@
 
 [English](../en/apk-installation.md) | [Русский](../ru/apk-installation.md)
 
+<table>
+  <tr>
+    <th align="center">GitHub</th>
+    <th align="center">F-Droid</th>
+  </tr>
+  <tr>
+    <td align="center">
+      <a href="https://github.com/andre487/AndroidMessage487/releases/latest/download/message487.apk">
+        <img src="../../assets/branding/get-it-on-github.png" alt="Скачать APK с GitHub" height="75">
+      </a>
+    </td>
+    <td align="center">
+      <a href="https://f-droid.org/packages/life.andre.message487/">
+        <img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Установить из F-Droid" height="75">
+      </a>
+    </td>
+  </tr>
+</table>
+
 ## Обновления приложения
 
 Откройте **Обновления приложения** значком обновления в верхней панели. Для установок из