Add description

Author: yanecc

README.md

@@ -1,6 +1,6 @@
 # vfox-ruby
 
-[Ruby](https://www.ruby-lang.org/) language plugin for [vfox](https://vfox.lhan.me).
+[Ruby](https://www.ruby-lang.org/) language plugin for [vfox](https://vfox.lhan.me). For Linux and macos, both [Ruby(conda-forge)](https://github.com/conda-forge/ruby-feedstock) and [TruffleRuby](https://www.graalvm.org/ruby/) are provided. To use TruffleRuby, some [dependencies](https://github.com/oracle/truffleruby/blob/master/README.md#Dependencies) are required.
 
 ## Install
 

metadata.lua

@@ -5,7 +5,7 @@ PLUGIN = {}
 --- Plugin name
 PLUGIN.name = "ruby"
 --- Plugin version
-PLUGIN.version = "0.3.0"
+PLUGIN.version = "0.3.1"
 --- Plugin homepage
 PLUGIN.homepage = "https://github.com/yanecc/vfox-ruby"
 --- Plugin license, please choose a correct license according to your needs.