Update README.md

Author: baba-s

README.md

@@ -4,7 +4,7 @@ You can start compiling without having to return focus to the Unity editor after
 
 [![](https://img.shields.io/github/release/baba-s/unity-compile-in-background.svg?label=latest%20version)](https://github.com/baba-s/unity-compile-in-background/releases)
 [![](https://img.shields.io/github/release-date/baba-s/unity-compile-in-background.svg)](https://github.com/baba-s/unity-compile-in-background/releases)
-![](https://img.shields.io/badge/Unity-2017.4%2B-red.svg)
+![](https://img.shields.io/badge/Unity-2018.2%2B-red.svg)
 ![](https://img.shields.io/badge/.NET-3.5%2B-orange.svg)
 [![](https://img.shields.io/github/license/baba-s/unity-compile-in-background.svg)](https://github.com/baba-s/unity-compile-in-background/blob/master/LICENSE)
 
@@ -18,20 +18,3 @@ You can start compiling without having to return focus to the Unity editor after
 
 For example, if you edit and save the code in Visual Studio,   
 compilation will start without returning to the Unity editor.  
-
-## Options
-
-![](https://cdn-ak.f.st-hatena.com/images/fotolife/b/baba_s/20181227/20181227150738.png)
-
-You can change the setting by selecting "UnityCompileInBackground" from  
-"Edit> Preferences ..." in the Unity menu.  
-(Select "Compile in BG" for Unity 2018.2 and below)  
-
-| Item | Description |
-| :-- | :-- |
-| Enabled | Whether to enable UnityCompileInBackground |
-| Wait Time (sec) | Interval to monitor whether script has been modified |
-| Enabled Debug Log | Whether to output logs when script is monitored |
-
-Since the setting of UnityCompileInBackground is saved with EditorPrefs,  
-the settings are shared when using UnityCompileInBackground in other Unity projects.