small changes

src/syntax/expression/unary.rs

@@ -23,4 +23,3 @@ pub fn try_parse(tokens: &Vec<Token>, pos: usize) -> ParseResult<Expression, ()>
         _ => primary::try_parse(tokens, pos),
     }
 }
-

src/syntax/grammar.md

@@ -85,6 +85,8 @@ factor = unary, (("/" | "*"), unary)*;
 unary = ("!" | "-"), expression
       | primary;
 
+function call = primary, (arguments list)?;
+
 primary = number | string | boolean | identifier | ("(", expression, ")");
 ```