USERNAME.md in lite-validators-1.1.0

- old
+ new

@@ -2,10 +2,10 @@
 
 #### Rules
 
 ```ruby
 # 1. Pattern
-/^[a-z0-9_-]{1,255}$/
+/^[A-Za-z0-9._-]{1,255}$/
 ```
 
 #### Usage
 
 ```ruby