Add icons for installation, verification and repository structure

README.md

@@ -3,6 +3,8 @@
 
 ## Installation
 
+<img src="assets/icon-install.png" width="36" align="left">
+
 1. Download the APK for the version you want from [`releases/`](releases/).
 2. On your Android device, allow installs from unknown sources for the app you use to open the file (Settings → Apps → Special access → Install unknown apps).
 3. Open the downloaded `.apk` file and confirm the install.
@@ -15,6 +17,8 @@ adb install releases/Fogwawe-v1.0.8.apk
 
 ## Verifying a download
 
+<img src="assets/icon-verify.png" width="36" align="left">
+
 Compare the SHA-256 checksum against the value listed in [CHANGELOG.md](CHANGELOG.md):
 
 ```sh
@@ -23,9 +27,12 @@ sha256sum releases/Fogwawe-v1.0.8.apk
 
 ## Repository structure
 
+<img src="assets/icon-structure.png" width="36" align="left">
+
 ```
 .
 ├── releases/           # Versioned APK builds (Fogwawe-vX.Y.Z.apk)
+├── assets/              # Icon images
 ├── CHANGELOG.md         # Per-version sizes and checksums
 ├── LICENSE              # GNU GPLv3
 └── README.md