diff --git a/README.md b/README.md
index be9a8d1..b2473f3 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,9 @@ This is a personal hobby project. I've published a little game on
 [Google Play](https://play.google.com/store/apps/details?id=com.woom.game)
 based on this engine. Full game code and assets are included in this repository.
 
-## Pre-requisities:
+## Pre-requisites:
 
-This project uses `GN build system` for all platforms except Android
+This project uses **GN build system** for all platforms except Android
 (I want to add support for APKs, Java code etc. to the GN configuration and use
 it for all platforms). \
 Building GN from source:
@@ -16,9 +16,10 @@ https://gn.googlesource.com/gn/ \
 Pre-built GN binaries:
 https://chrome-infra-packages.appspot.com/p/gn/gn/
 
-`Gradle`, `Android SDK` and `NDK` are required for Android. 
-If you prefer, you can install `Android Studio` which includes all the
-requirements.
+Linux is the supported host platform to build Android. **Gradle**,
+**Android SDK** and **NDK** are required. If you prefer, you can install
+**Android Studio** which
+includes all the requirements.
 
 ## Building from the command-line:
 
diff --git a/kaliber.png b/kaliber.png
index 3680562..a756276 100644
Binary files a/kaliber.png and b/kaliber.png differ