Installation: 
Copy the content of the folder "Gravel - Reshade" to the game main directory. 

Deletion: 
Delete the folder "reshade-shaders" and the files "dxgi.dll", "dxgi.ini", "g.ini", "dxgi.log". 

Using the reshade preset: 
The preset is enabled by default. To disable or enable the preset press the Scroll Lock key. 

Download:
http://www.mediafire.com/file/na9frlf2ajzm852/Gravel%20-%20Reshade.rar