Lightning corrections and updated README

README.md

@@ -4,10 +4,15 @@ An open source CS:GO map.
 
 Custom materials used in this map are available inside the materials folder. Do not forget to install them before attempting to compile it through Valve Hammer Editor.
 
+## Building the map
+
+Open `de_abandoned_hospital.vmf` with Valve Hammer Editor (Counter Strike : Global Offensive SDK version). Press `F9` to compile, then select `Expert...` and choose the `Full compile -both -final (slow)` preset. Compilation will be way slower but it will ensure that the lightning of static props on the map are correctly rendered.
+
 ## Running this map on a server
 
-1. Install the map
+1. Build the map or download the [latest release](https://git.quent1.fr/quent1/de_abandoned_hospital/releases).
-2. Generate the navigation meshes file.
+2. Install the map
+3. Generate the navigation meshes file (see below).
 
 ## Generating the navigation meshes files