Updated readme

Author: sbryzak

README.md

@@ -1 +1,14 @@
 # developer-platform-install
+
+Red Hat Developer Platform Installer
+====================================
+This installer is built on Windows using [Inno Setup 5.5.6](http://www.jrsoftware.org/isinfo.php), which can be downloaded from [this page](http://www.jrsoftware.org/isdl.php).
+
+You will also require the [Inno Download Plugin](https://code.google.com/p/inno-download-plugin/).
+
+After installing both Inno Setup and the Inno Download Plugin, launch the Inno Setup Compiler and open developer_platform_installer.iss.
+
+Ctrl+F9 will compile the installer, while F9 will compile and run the installer.
+
+
+