update building instructions

added win32 and linux build instructions

README.md

@@ -27,18 +27,37 @@ Then start Iguana App
 npm start
 ```
 
-
 #### For end users
 The instructions to make production build of Iguana App will be updated soon.
 
-To make production ready app, install `electron-packager` and `electron-prebuilt` packages from npm
+To build the production ready app, install `electron-packager` and `electron-prebuilt` packages from npm
 ```shell
 npm install electron-packager -g
 npm install electron-prebuilt -g
 ```
 
-Change directory to iguana and execute following command to build OSX App
+#### **Build the Wallet-App**
+Refer to the original [electron-packager](https://github.com/electron-userland/electron-packager) repository for more detailed information.
+
+##### Linux
+Change directory to iguana and execute the following command to build the Linux app
+```shell
+cd iguana
+electron-packager . --platform=linux --arch=ia32 --out=build/
+```
+change architecture build parameter to ```--arch=x64``` for 64 bit build
+
+##### OSX
+Change directory to iguana and execute the following command to build the OSX app
 ```shell
 cd iguana
 electron-packager . --platform=darwin --arch=x64 --icon=assets/icons/komodo.icns --out=build/
-```
+```
+
+##### Windows
+Change directory to iguana and execute the following command to build the Windows app
+```shell
+dir iguana
+electron-packager . --platform=win32 --arch=ia32 --icon=assets/icons/komodo.ico --out=build/
+```
+change architecture build parameter to ```--arch=x64``` for 64 bit build