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README.md

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 A [Flarum](http://flarum.org) extension. 用户经验等级
 
+## Usage
+### set the display format & formula of level/exp
+![Snipaste_2023-09-28_12-18-35](https://github.com/FoskyM/flarum-custom-levels/assets/39661663/5bfd6377-eeb4-4683-b9b9-5e4489cb49de)
+
+
+##### Nonlinear
+![Snipaste_2023-09-28_12-21-48](https://github.com/FoskyM/flarum-custom-levels/assets/39661663/c8deb7ac-7cb2-452c-881c-74d8dfbd908a)
+
+##### Average
+![Snipaste_2023-09-28_12-21-56](https://github.com/FoskyM/flarum-custom-levels/assets/39661663/1d46c1b1-829d-4ee5-ae62-3e459b8a3988)
+
+### it's an example
+![Snipaste_2023-09-28_12-19-05](https://github.com/FoskyM/flarum-custom-levels/assets/39661663/38b14508-1900-48b5-aee5-6e7c2868091b)
+
+
+
+
 ## Installation
 
 Install with composer: