Update manual installation

README.md

@@ -26,7 +26,6 @@ sudo sed -i 's/^webkit_theme\s*=\s*\(.*\)/webkit_theme = osmos/g' /etc/lightdm/l
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 ## Control brightness and battery:
-<!-- ### Integrated [nody-greeter API](https://github.com/JezerM/nody-greeter) to control brightness and battery -->
 ![image](https://user-images.githubusercontent.com/83131232/206694253-865022cd-5406-45f2-9bf1-6307816adcf7.png)
 
 If you want to control brightness and battery - install [node-greeter](https://github.com/JezerM/nody-greeter#installation).
@@ -81,4 +80,4 @@ sudo systemctl start acpid
 - Add possibility to guest login []
 - Add possibility to pick the wallpaper []
 - Add zoom slider (for hight DPI screens) [x]
-- Add CHANGELOG []
+- Add CHANGELOG []