Merge pull request #133 from saeugetier/feature/43-improve-documentation

Feature/43 improve documentation

README.md

@@ -115,7 +115,7 @@ The templates can be imported from USB storage. All files with extension "xml,jp
 ### How to create own templates
 Create your own "Collages.xml" file. You can use the file "XmlData.xml" to customize.
 
-The root node of the XML is named "catalog". It contains nodes for the templates for collages named "collage". The collage must contain at least one "image", a "name", an "background" and an "icon". You can use builtin backgrounds like "WhiteBackground.png". 
+The root node of the XML is named "catalog". It contains nodes for the templates for collages named "collage". The collage must contain at least one "image", a "name", a "background", a "foreground" and an "icon". You can use builtin backgrounds like "WhiteBackground.png" or create your custom one. Forground will be painted in the front layer. So it is highly recommended to have an alpha channel and some cutouts for your photos.
 
 Images will need information about the position and size. The range of the values for position and size is between 0.0 and 1.0. It is possible to define a image boarder for each image.
 
@@ -131,6 +131,7 @@ Example for "Collages.xml":
         <printable>false</printable>
         <icon>Single.svg</icon>
         <background>WhiteBackground.png</background>
+        <foreground>ExampleForeground.png</foreground>
         <images>
             <image><position x="0.0" y="0.0"/><size width="1.0" height="1.0"/></image>
         </images>

docs/index.md

@@ -1,14 +1,15 @@
 # Overview
 
-This project contains yet another [Photobooth](https://github.com/saeugetier/photobooth). The software is intended to run on a Raspberry Pi 2/3, but it can run on any linux PC. A preview image is displayed in capture mode. After countdown, a picture is taken and can be discarded or saved. Saved images can be printed immediately or printed as 2 by 2 collage image. All saved images are shown in the gallery page.
+This project contains yet another [Photobooth](https://github.com/saeugetier/photobooth). The software is intended to run on a Raspberry Pi 2 and upwards, but it can run on any linux PC. A preview image is displayed in capture mode. After countdown, a picture is taken and can be discarded or saved. Saved images can be printed immediately or printed  collage image with multiple photos. All saved images are shown on front page when the photobox is idle.
 
 As image source a DSLR over GPhoto2 or a V4L2 camera (Raspberry Pi Camera or webcam) can be used.
 
-The application can be either compiled and deployed on an existing Raspbian installation, or a ready to go image can be build by Yocto build system: [https://github.com/saeugetier/poky-photobooth/](https://github.com/saeugetier/poky-photobooth/)
+The application can be either compiled and deployed on an existing Raspberry Pi OS installation, or a ready to go image can be build by Yocto build system: [https://github.com/saeugetier/poky-photobooth/](https://github.com/saeugetier/poky-photobooth/)
 
 ## Video
 
-[![Video](https://img.youtube.com/vi/Z9pVK-X5Wz4/0.jpg)](https://youtu.be/Z9pVK-X5Wz4)
+[![](https://markdown-videos-api.jorgenkh.no/youtube/fB2aQGPT-wg?width=640&height=360)](https://youtu.be/fB2aQGPT-wg)
+(Link to Youtube)
 
 # Technology
 ## Software