document new access methods

crates/bevy_ecs/src/query/access.rs

@@ -270,6 +270,7 @@ impl<T: SparseSetIndex> Access<T> {
         self.writes.ones().map(T::get_sparse_set_index)
     }
 
+    /// checks if the difference of `self` with `other` is empty
     pub fn read_and_writes_difference_is_empty(&self, other: &Access<T>) -> bool {
         if self.reads_all || self.writes_all {
             return other.reads_all || other.writes_all;
@@ -280,6 +281,7 @@ impl<T: SparseSetIndex> Access<T> {
             == 0
     }
 
+    /// checks if there is any access set
     pub fn has_access(&self) -> bool {
         self.writes_all || self.reads_all || !self.reads_and_writes.is_clear()
     }