README.md in shirinji-0.0.7 vs README.md in shirinji-0.0.8

@@ -12,12 +12,9 @@
 
 Dependencies Injection made clean and easy for Ruby.
 
 ## Supported ruby versions
 
-- 2.4.x
-- 2.5.x
-- 2.6.x
 - 2.7.x
 - 3.0.x
 
 ## Principles