1 files changed, 11 insertions, 7 deletions

diff --git a/README.md b/README.md
index f8dff10..1d43430 100644
--- a/README.md
+++ b/README.md
@@ -28,17 +28,21 @@ or can be interpreted with the [ABCMachine][abc-github] project.
 
 <Expression>     ::= <Name>
                   |  <Literal>
-                  |  <Name> '(' <Expression>-clist ')'
-                  |  <Op1> <Expression>
-                  |  <Expression> <Op2> <Expression>
-                  |  '(' <Expression>-clist ')'
-                  |  '(' <Expression> ')'
-                  |  <Expression> '.' <Name>
+                  |  <Name> '(' <Expression>-clist ')'  // Function application
+                  |  <Op1> <Expression>                 // Unary operator
+                  |  <Expression> <Op2> <Expression>    // Binary operator
+                  |  '(' <Expression>-clist ')'         // Tuple
+                  |  '[' <Type> ']'                     // Empty list
+                  |  '[' <Expression>-clist ']'         // List shortcut
+                  |  <Expression> '.' <Name>            // Field application
+                  |  '(' <Expression> ')'               // Parenthised expression
 
 <Op1>            ::= '~' | '!'
-<Op2>            ::= '+' | '-' | '*' | '/' | '%' | '==' | '||' | '&&'
+<Op2>            ::= '+' | '-' | '*' | '/' | '%' | '==' | '||' | '&&' | ':'
 
 <Type>           ::= 'Bool' | 'Int' | 'Void'
+                  |  '(' <Type>-clist ')'     // Tuple
+                  |  '[' <Type> ']'           // List
 
 <Literal>        ::= <Bool> | <Int>
 <Bool>           ::= 'True' | 'False'