wiki/Home.md: Update description to match version v0.3-DL-2

IepIweidieng · IepIweidieng · commit 25720f4a6b18 · 2020-02-26T14:47:48.000+08:00
diff --git a/wiki/Home.md b/wiki/Home.md
@@ -2,4 +2,4 @@ Welcome to the BBS-Ruby wiki!
 
 ## About BBS-Ruby
 
-BBS-Ruby is a binding that provides a Ruby scripting environment for BBS. It allows users to write custom programs that run on the BBS. Security is also concerned and is guarded by Ruby's security level mechanism (`$SAFE` level). The users have no access to any object you don't expose to them.
+BBS-Ruby is a binding that provides a Ruby scripting environment for BBS. It allows users to write custom programs that run on the BBS. Security is also concerned and is guarded by Ruby's security mechanisms (library whitelist on mruby or `$SAFE` level on CRuby). The users have no access to any object you don't expose to them.

Original file line number	Diff line number	Diff line change
`@@ -2,4 +2,4 @@ Welcome to the BBS-Ruby wiki!`
`2`	`2`
`3`	`3`	`## About BBS-Ruby`
`4`	`4`
`5`		-BBS-Ruby is a binding that provides a Ruby scripting environment for BBS. It allows users to write custom programs that run on the BBS. Security is also concerned and is guarded by Ruby's security level mechanism (`$SAFE` level). The users have no access to any object you don't expose to them.
	`5`	+BBS-Ruby is a binding that provides a Ruby scripting environment for BBS. It allows users to write custom programs that run on the BBS. Security is also concerned and is guarded by Ruby's security mechanisms (library whitelist on mruby or `$SAFE` level on CRuby). The users have no access to any object you don't expose to them.