Merge pull request #330 from mjbshaw/patch-1

Fix the definition of MetaItem and MetaSeq

Author: Havvy

src/attributes.md

@@ -15,12 +15,11 @@
 >    | IDENTIFIER `=` LITERAL  
 >    | IDENTIFIER `(` LITERAL `)`  
 >    | IDENTIFIER `(` _MetaSeq_ `)`  
->    | IDENTIFIER `(` _MetaSeq_ `,` `)`  
 >   
 > _MetaSeq_ :  
 >       EMPTY  
 >    | _MetaItem_  
->    | _MetaSeq_ `,` _MetaItem_  
+>    | _MetaItem_ `,` _MetaSeq_
 
 Any item declaration may have an _attribute_ applied to it. Attributes in Rust
 are modeled on Attributes in ECMA-335, with the syntax coming from ECMA-334