feat(reference): Lexical Structure—Delimiters

Author: ospencer

docs_config.yml

@@ -101,7 +101,7 @@ docs_groups:
         - reference/lexical_structure/identifiers
         - reference/lexical_structure/literals
         - reference/lexical_structure/operators
-  #     - reference/lexical_structure/delimiters
+        - reference/lexical_structure/delimiters
   #   - constructs/bindings
   #   - constructs/numbers
   #   - constructs/booleans

src/reference/lexical_structure/delimiters.md

@@ -0,0 +1,17 @@
+---
+title: Delimiters
+---
+
+The following tokens are considered delimiters.
+
+```grain
+( )
+{ }
+[ ]
+[> ]
+,
+;
+@
+->
+=>
+```