message: correct spelling, add spacing between fields
diff: @@ -92,6 +92,7 @@ where
  /// Last time the value has actually changed.
  /// changed_at can be less than verified_at.
  changed_at: Revision,
  +
  /// The result of the query, if we decide to memoize it.
  value: Option<Q::Value>,
  @@ -152,7 +153,8 @@ where
  key,
  m.verified_at,
  );
  - // We've found that the query is defenitelly up-to-date.
  +
  + // We've found that the query is definitely up-to-date.
  // If the value is also memoized, return it.
  // Otherwise fallback to recomputing the value.
  if m.verified_at == revision_now {
  