Update README.md

Author: bghgary

Figures/Pack1.png

@@ -2,30 +2,29 @@
 Microsoft Windows shell extensions that pack .gltf to .glb and unpack .glb to .gltf
 
 # Installing
-1. Download the latest `glTF-Shell-Extensions.zip` from [Releases](https://github.com/bghgary/glTF-Shell-Extensions/releases).
-2. Unblock the zip file.
-3. Unzip the file to `%ProgramFiles%\glTF Shell Extensions` or a directory of your choosing.
-4. Run `Setup.cmd` as Administrator.
+1. Download the latest installer `glTF-Shell-Extensions.msi` from [Releases](https://github.com/bghgary/glTF-Shell-Extensions/releases).
+2. Unblock the installer file to avoid security warnings.
+3. Double-click the installer file.
 
 # Usage
 ## Packing `.gltf` to `.glb`
 
 Right-click on a `.gltf` file and select `Pack to Binary glTF...`.
 
-![](/figures/pack1.png)
+![](/Figures/Pack1.png)
 
 Select a name for the new `.glb` file.
 
-![](/figures/pack2.png)
+![](/Figures/Pack2.png)
 
 ## Unpacking `.glb` to `.gltf`
 
 Right-click on a `.glb` file and select `Unpack to glTF...`.
 
-![](/figures/unpack1.png)
+![](/Figures/Unpack1.png)
 
 Select a destination folder for the glTF files and click on the `Unpack` button.
 
-![](/figures/unpack2.png)
+![](/Figures/Unpack2.png)
 
-![](/figures/unpack3.png)
+![](/Figures/Unpack3.png)