Add doc comments for tree included ranges getter

lib/binding_rust/lib.rs

@@ -764,6 +764,7 @@ impl Tree {
         }
     }
 
+    /// Get the included ranges that were used to parse the syntax tree.
     pub fn included_ranges(&self) -> Vec<Range> {
         let mut count = 0u32;
         unsafe {

lib/include/tree_sitter/api.h

@@ -381,6 +381,11 @@ TSNode ts_tree_root_node_with_offset(
  */
 const TSLanguage *ts_tree_language(const TSTree *);
 
+/**
+ * Get the array of included ranges that was used to parse the syntax tree.
+ *
+ * The returned pointer must be freed by the caller.
+ */
 TSRange *ts_tree_included_ranges(const TSTree *, uint32_t *length);
 
 /**