Add docs, 1.0.0 release

Author: pimterry

README.md

@@ -1,2 +1,9 @@
 # android-ssl-pinning-demo
-A tiny demo app using SSL pinning to block HTTPS MitM interception
+
+> _Part of [HTTP Toolkit](https://httptoolkit.tech): powerful tools for building, testing & debugging HTTP(S)_
+
+A tiny demo app using SSL pinning to block HTTPS MitM interception.
+
+## Try it out
+
+You can either clone this repo and build it yourself in Android Studio, or download the APK from the [releases page](https://github.com/httptoolkit/android-ssl-pinning-demo/releases) and install it with `adb install android-ssl-pinning-demo.apk`.